690970792 has 8 divisors (see below), whose sum is σ = 1295570250. Its totient is φ = 345485392.

The previous prime is 690970759. The next prime is 690970877. The reversal of 690970792 is 297079096.

It can be written as a sum of positive squares in only one way, i.e., 552532036 + 138438756 = 23506^2 + 11766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 43185667 + ... + 43185682.

Almost surely, 2^690970792 is an apocalyptic number.

It is an amenable number.

690970792 is a deficient number, since it is larger than the sum of its proper divisors (604599458).

690970792 is a wasteful number, since it uses less digits than its factorization.

690970792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86371355 (or 86371351 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 690970792 is about 26286.3232879762. The cubic root of 690970792 is about 884.0698162886.

The spelling of 690970792 in words is "six hundred ninety million, nine hundred seventy thousand, seven hundred ninety-two".