27970936 has 16 divisors (see below), whose sum is σ = 59937840. Its totient is φ = 11987520.

The previous prime is 27970931. The next prime is 27970937. The reversal of 27970936 is 63907972.

It is a junction number, because it is equal to n+sod(n) for n = 27970892 and 27970901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27970931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249685 + ... + 249796.

It is an arithmetic number, because the mean of its divisors is an integer number (3746115).

Almost surely, 2^27970936 is an apocalyptic number.

It is an amenable number.

27970936 is an abundant number, since it is smaller than the sum of its proper divisors (31966904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27970936 is a wasteful number, since it uses less digits than its factorization.

27970936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499494 (or 499490 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 27970936 is about 5288.7556192360. The cubic root of 27970936 is about 303.5537948353.

The spelling of 27970936 in words is "twenty-seven million, nine hundred seventy thousand, nine hundred thirty-six".