690825260 has 24 divisors (see below), whose sum is σ = 1536071040. Its totient is φ = 260075264.

The previous prime is 690825259. The next prime is 690825271. The reversal of 690825260 is 62528096.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015580 + ... + 1016259.

It is an arithmetic number, because the mean of its divisors is an integer number (64002960).

Almost surely, 2^690825260 is an apocalyptic number.

It is an amenable number.

690825260 is an abundant number, since it is smaller than the sum of its proper divisors (845245780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690825260 is a wasteful number, since it uses less digits than its factorization.

690825260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031865 (or 2031863 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 690825260 is about 26283.5549345974. The cubic root of 690825260 is about 884.0077444501.

The spelling of 690825260 in words is "six hundred ninety million, eight hundred twenty-five thousand, two hundred sixty".