684275090 has 32 divisors (see below), whose sum is σ = 1287567360. Its totient is φ = 261518400.

The previous prime is 684275083. The next prime is 684275107. The reversal of 684275090 is 90572486.

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, 10520 + ... + 38460.

It is an arithmetic number, because the mean of its divisors is an integer number (40236480).

Almost surely, 2^684275090 is an apocalyptic number.

684275090 is a deficient number, since it is larger than the sum of its proper divisors (603292270).

684275090 is a wasteful number, since it uses less digits than its factorization.

684275090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28058.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 684275090 is about 26158.6522970890. The cubic root of 684275090 is about 881.2049136768.

The spelling of 684275090 in words is "six hundred eighty-four million, two hundred seventy-five thousand, ninety".