20964682 has 4 divisors (see below), whose sum is σ = 31447026. Its totient is φ = 10482340.

The previous prime is 20964677. The next prime is 20964701. The reversal of 20964682 is 28646902.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28646902 = 2 ⋅14323451.

It can be written as a sum of positive squares in only one way, i.e., 17464041 + 3500641 = 4179^2 + 1871^2 .

It is a super-2 number, since 2×20964682² = 879035782722248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5241169 + ... + 5241172.

Almost surely, 2^20964682 is an apocalyptic number.

20964682 is a deficient number, since it is larger than the sum of its proper divisors (10482344).

20964682 is a wasteful number, since it uses less digits than its factorization.

20964682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10482343.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 20964682 is about 4578.7205636509. The cubic root of 20964682 is about 275.7376646855.

The spelling of 20964682 in words is "twenty million, nine hundred sixty-four thousand, six hundred eighty-two".