31670090 has 8 divisors (see below), whose sum is σ = 57006180. Its totient is φ = 12668032.

The previous prime is 31670087. The next prime is 31670123. The reversal of 31670090 is 9007613.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29735209 + 1934881 = 5453^2 + 1391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583495 + ... + 1583514.

Almost surely, 2^31670090 is an apocalyptic number.

31670090 is a deficient number, since it is larger than the sum of its proper divisors (25336090).

31670090 is a wasteful number, since it uses less digits than its factorization.

31670090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167016.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 31670090 is about 5627.6185016399. The cubic root of 31670090 is about 316.3853987550.

The spelling of 31670090 in words is "thirty-one million, six hundred seventy thousand, ninety".