690480816 has 20 divisors (see below), whose sum is σ = 1783742232. Its totient is φ = 230160256.

The previous prime is 690480811. The next prime is 690480851. The reversal of 690480816 is 618084096.

690480816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (690480811) 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, 7192461 + ... + 7192556.

Almost surely, 2^690480816 is an apocalyptic number.

It is an amenable number.

690480816 is an abundant number, since it is smaller than the sum of its proper divisors (1093261416).

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

690480816 is a wasteful number, since it uses less digits than its factorization.

690480816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14385028 (or 14385022 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 690480816 is about 26277.0016554401. The cubic root of 690480816 is about 883.8607985669.

The spelling of 690480816 in words is "six hundred ninety million, four hundred eighty thousand, eight hundred sixteen".