69630561 has 96 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 32572800.

The previous prime is 69630553. The next prime is 69630569. The reversal of 69630561 is 16503696.

69630561 is a `hidden beast` number, since 6 + 96 + 3 + 0 + 561 = 666.

It is an interprime number because it is at equal distance from previous prime (69630553) and next prime (69630569).

It is not a de Polignac number, because 69630561 - 2³ = 69630553 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69630569) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 531466 + ... + 531596.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^69630561 is an apocalyptic number.

It is an amenable number.

69630561 is a deficient number, since it is larger than the sum of its proper divisors (68747679).

69630561 is a wasteful number, since it uses less digits than its factorization.

69630561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 69630561 is about 8344.4928545718. The cubic root of 69630561 is about 411.4022204829.

The spelling of 69630561 in words is "sixty-nine million, six hundred thirty thousand, five hundred sixty-one".