69345657 has 6 divisors (see below), whose sum is σ = 100165962. Its totient is φ = 46230432.

The previous prime is 69345623. The next prime is 69345671. The reversal of 69345657 is 75654396.

It can be written as a sum of positive squares in only one way, i.e., 43243776 + 26101881 = 6576^2 + 5109^2 .

It is not a de Polignac number, because 69345657 - 2¹⁶ = 69280121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69345607) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3852528 + ... + 3852545.

It is an arithmetic number, because the mean of its divisors is an integer number (16694327).

Almost surely, 2^69345657 is an apocalyptic number.

It is an amenable number.

69345657 is a deficient number, since it is larger than the sum of its proper divisors (30820305).

69345657 is a wasteful number, since it uses less digits than its factorization.

69345657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7705079 (or 7705076 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 69345657 is about 8327.4039772308. The cubic root of 69345657 is about 410.8403485982.

The spelling of 69345657 in words is "sixty-nine million, three hundred forty-five thousand, six hundred fifty-seven".