3469929157 has 4 divisors (see below), whose sum is σ = 3470079276. Its totient is φ = 3469779040.

The previous prime is 3469929149. The next prime is 3469929209. The reversal of 3469929157 is 7519299643.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7519299643 = 31 ⋅242558053.

It can be written as a sum of positive squares in 2 ways, for example, as 840188196 + 2629740961 = 28986^2 + 51281^2 .

It is a cyclic number.

It is not a de Polignac number, because 3469929157 - 2³ = 3469929149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3469929098 and 3469929107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3469929137) 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, 32248 + ... + 89329.

It is an arithmetic number, because the mean of its divisors is an integer number (867519819).

Almost surely, 2^3469929157 is an apocalyptic number.

It is an amenable number.

3469929157 is a deficient number, since it is larger than the sum of its proper divisors (150119).

3469929157 is a wasteful number, since it uses less digits than its factorization.

3469929157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150118.

The product of its digits is 3674160, while the sum is 55.

The square root of 3469929157 is about 58906.1045817834. The cubic root of 3469929157 is about 1513.9337452036.

The spelling of 3469929157 in words is "three billion, four hundred sixty-nine million, nine hundred twenty-nine thousand, one hundred fifty-seven".