69898157 has 12 divisors (see below), whose sum is σ = 82428156. Its totient is φ = 59088960.

The previous prime is 69898141. The next prime is 69898159. The reversal of 69898157 is 75189896.

It can be written as a sum of positive squares in 2 ways, for example, as 28153636 + 41744521 = 5306^2 + 6461^2 .

It is not a de Polignac number, because 69898157 - 2⁴ = 69898141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69898099 and 69898108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69898159) 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, 6194 + ... + 13347.

It is an arithmetic number, because the mean of its divisors is an integer number (6869013).

Almost surely, 2^69898157 is an apocalyptic number.

It is an amenable number.

69898157 is a deficient number, since it is larger than the sum of its proper divisors (12529999).

69898157 is a wasteful number, since it uses less digits than its factorization.

69898157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19628 (or 19621 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 53.

The square root of 69898157 is about 8360.5117666325. The cubic root of 69898157 is about 411.9285643734.

The spelling of 69898157 in words is "sixty-nine million, eight hundred ninety-eight thousand, one hundred fifty-seven".