699955616 has 12 divisors (see below), whose sum is σ = 1378037682. Its totient is φ = 349977792.

The previous prime is 699955601. The next prime is 699955621. The reversal of 699955616 is 616559996.

It can be written as a sum of positive squares in only one way, i.e., 565488400 + 134467216 = 23780^2 + 11596^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10936775 + ... + 10936838.

Almost surely, 2^699955616 is an apocalyptic number.

It is an amenable number.

699955616 is a deficient number, since it is larger than the sum of its proper divisors (678082066).

699955616 is a wasteful number, since it uses less digits than its factorization.

699955616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21873623 (or 21873615 counting only the distinct ones).

The product of its digits is 3936600, while the sum is 56.

The square root of 699955616 is about 26456.6743185911. The cubic root of 699955616 is about 887.8852352835.

The spelling of 699955616 in words is "six hundred ninety-nine million, nine hundred fifty-five thousand, six hundred sixteen".