20860712 has 8 divisors (see below), whose sum is σ = 39113850. Its totient is φ = 10430352.

The previous prime is 20860691. The next prime is 20860733. The reversal of 20860712 is 21706802.

It is an interprime number because it is at equal distance from previous prime (20860691) and next prime (20860733).

It can be written as a sum of positive squares in only one way, i.e., 15319396 + 5541316 = 3914^2 + 2354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1303787 + ... + 1303802.

Almost surely, 2^20860712 is an apocalyptic number.

It is an amenable number.

20860712 is a deficient number, since it is larger than the sum of its proper divisors (18253138).

20860712 is a wasteful number, since it uses less digits than its factorization.

20860712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607595 (or 2607591 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 20860712 is about 4567.3528438254. The cubic root of 20860712 is about 275.2810877984.

The spelling of 20860712 in words is "twenty million, eight hundred sixty thousand, seven hundred twelve".