690489070 has 32 divisors (see below), whose sum is σ = 1309802400. Its totient is φ = 261357696.

The previous prime is 690489067. The next prime is 690489097. The reversal of 690489070 is 70984096.

It is a congruent number.

It is an unprimeable number.

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, 232032 + ... + 234988.

It is an arithmetic number, because the mean of its divisors is an integer number (40931325).

Almost surely, 2^690489070 is an apocalyptic number.

690489070 is a deficient number, since it is larger than the sum of its proper divisors (619313330).

690489070 is a wasteful number, since it uses less digits than its factorization.

690489070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 690489070 is about 26277.1587124636. The cubic root of 690489070 is about 883.8643204403.

The spelling of 690489070 in words is "six hundred ninety million, four hundred eighty-nine thousand, seventy".