6898157 has 4 divisors (see below), whose sum is σ = 7883616. Its totient is φ = 5912700.

The previous prime is 6898139. The next prime is 6898163. The reversal of 6898157 is 7518986.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6898157 - 2⁸ = 6897901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6898117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492719 + ... + 492732.

It is an arithmetic number, because the mean of its divisors is an integer number (1970904).

Almost surely, 2^6898157 is an apocalyptic number.

It is an amenable number.

6898157 is a deficient number, since it is larger than the sum of its proper divisors (985459).

6898157 is an equidigital number, since it uses as much as digits as its factorization.

6898157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985458.

The product of its digits is 120960, while the sum is 44.

The square root of 6898157 is about 2626.4342748297. The cubic root of 6898157 is about 190.3608746225.

The spelling of 6898157 in words is "six million, eight hundred ninety-eight thousand, one hundred fifty-seven".