69630644 has 6 divisors (see below), whose sum is σ = 121853634. Its totient is φ = 34815320.

The previous prime is 69630601. The next prime is 69630667. The reversal of 69630644 is 44603696.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 48580900 + 21049744 = 6970^2 + 4588^2 .

It is a junction number, because it is equal to n+sod(n) for n = 69630598 and 69630607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8703827 + ... + 8703834.

It is an arithmetic number, because the mean of its divisors is an integer number (20308939).

Almost surely, 2^69630644 is an apocalyptic number.

It is an amenable number.

69630644 is a deficient number, since it is larger than the sum of its proper divisors (52222990).

69630644 is a wasteful number, since it uses less digits than its factorization.

69630644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17407665 (or 17407663 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 69630644 is about 8344.4978279103. The cubic root of 69630644 is about 411.4023839474.

The spelling of 69630644 in words is "sixty-nine million, six hundred thirty thousand, six hundred forty-four".