156798 has 24 divisors (see below), whose sum is σ = 351936. Its totient is φ = 50400.

The previous prime is 156797. The next prime is 156799. The reversal of 156798 is 897651.

156798 is a `hidden beast` number, since 1 + 567 + 98 = 666.

It is an interprime number because it is at equal distance from previous prime (156797) and next prime (156799).

It is a super-2 number, since 2×156798² = 49171225608, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (14664).

2¹⁵⁶⁷⁹⁸ is an apocalyptic number.

156798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175968).

156798 is an abundant number, since it is smaller than the sum of its proper divisors (195138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156798 is a wasteful number, since it uses less digits than its factorization.

156798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 317 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 156798 is about 395.9772720751. The cubic root of 156798 is about 53.9237607259.

The spelling of 156798 in words is "one hundred fifty-six thousand, seven hundred ninety-eight".