73908870 has 64 divisors (see below), whose sum is σ = 205618176. Its totient is φ = 16652160.

The previous prime is 73908851. The next prime is 73908889. The reversal of 73908870 is 7880937.

It is an interprime number because it is at equal distance from previous prime (73908851) and next prime (73908889).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12432 + ... + 17388.

It is an arithmetic number, because the mean of its divisors is an integer number (3212784).

Almost surely, 2^73908870 is an apocalyptic number.

73908870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 73908870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102809088).

73908870 is an abundant number, since it is smaller than the sum of its proper divisors (131709306).

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

73908870 is a wasteful number, since it uses less digits than its factorization.

73908870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5045.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 73908870 is about 8597.0268116367. The cubic root of 73908870 is about 419.6612347674.

The spelling of 73908870 in words is "seventy-three million, nine hundred eight thousand, eight hundred seventy".