690099644 has 48 divisors (see below), whose sum is σ = 1331890560. Its totient is φ = 310901760.

The previous prime is 690099643. The next prime is 690099653. The reversal of 690099644 is 446990096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690099643) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 663677 + ... + 664715.

It is an arithmetic number, because the mean of its divisors is an integer number (27747720).

Almost surely, 2^690099644 is an apocalyptic number.

It is an amenable number.

690099644 is a deficient number, since it is larger than the sum of its proper divisors (641790916).

690099644 is a wasteful number, since it uses less digits than its factorization.

690099644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 690099644 is about 26269.7476957812. The cubic root of 690099644 is about 883.6981268972.

The spelling of 690099644 in words is "six hundred ninety million, ninety-nine thousand, six hundred forty-four".