699680936 has 8 divisors (see below), whose sum is σ = 1311901770. Its totient is φ = 349840464.

The previous prime is 699680921. The next prime is 699680939. The reversal of 699680936 is 639086996.

It can be written as a sum of positive squares in only one way, i.e., 459244900 + 240436036 = 21430^2 + 15506^2 .

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

It is not an unprimeable number, because it can be changed into a prime (699680939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43730051 + ... + 43730066.

Almost surely, 2^699680936 is an apocalyptic number.

It is an amenable number.

699680936 is a deficient number, since it is larger than the sum of its proper divisors (612220834).

699680936 is a wasteful number, since it uses less digits than its factorization.

699680936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87460123 (or 87460119 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 56.

The square root of 699680936 is about 26451.4826805606. The cubic root of 699680936 is about 887.7690773348.

The spelling of 699680936 in words is "six hundred ninety-nine million, six hundred eighty thousand, nine hundred thirty-six".