27312970 has 16 divisors (see below), whose sum is σ = 50363208. Its totient is φ = 10658560.

The previous prime is 27312917. The next prime is 27312973. The reversal of 27312970 is 7921372.

It can be written as a sum of positive squares in 4 ways, for example, as 4968441 + 22344529 = 2229^2 + 4727^2 .

It is not an unprimeable number, because it can be changed into a prime (27312973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32899 + ... + 33718.

Almost surely, 2^27312970 is an apocalyptic number.

27312970 is a deficient number, since it is larger than the sum of its proper divisors (23050238).

27312970 is a wasteful number, since it uses less digits than its factorization.

27312970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66665.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 27312970 is about 5226.1812061964. The cubic root of 27312970 is about 301.1546980209.

It can be divided in two parts, 27312 and 970, that added together give a palindrome (28282).

The spelling of 27312970 in words is "twenty-seven million, three hundred twelve thousand, nine hundred seventy".