690931048 has 16 divisors (see below), whose sum is σ = 1363680000. Its totient is φ = 327283056.

The previous prime is 690931027. The next prime is 690931049. The reversal of 690931048 is 840139096.

It is a self number, because there is not a number n which added to its sum of digits gives 690931048.

It is not an unprimeable number, because it can be changed into a prime (690931049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272648 + ... + 2272951.

It is an arithmetic number, because the mean of its divisors is an integer number (85230000).

Almost surely, 2^690931048 is an apocalyptic number.

It is an amenable number.

690931048 is a deficient number, since it is larger than the sum of its proper divisors (672748952).

690931048 is a wasteful number, since it uses less digits than its factorization.

690931048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545624 (or 4545620 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 690931048 is about 26285.5672946201. The cubic root of 690931048 is about 884.0528656713.

The spelling of 690931048 in words is "six hundred ninety million, nine hundred thirty-one thousand, forty-eight".