20964170 has 16 divisors (see below), whose sum is σ = 38268288. Its totient is φ = 8267280.

The previous prime is 20964169. The next prime is 20964197. The reversal of 20964170 is 7146902.

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, 14054 + ... + 15473.

It is an arithmetic number, because the mean of its divisors is an integer number (2391768).

Almost surely, 2^20964170 is an apocalyptic number.

20964170 is a deficient number, since it is larger than the sum of its proper divisors (17304118).

20964170 is a wasteful number, since it uses less digits than its factorization.

20964170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29605.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 20964170 is about 4578.6646524942. The cubic root of 20964170 is about 275.7354199764.

The spelling of 20964170 in words is "twenty million, nine hundred sixty-four thousand, one hundred seventy".