27961392 has 40 divisors (see below), whose sum is σ = 72624816. Its totient is φ = 9270016.

The previous prime is 27961387. The next prime is 27961393. The reversal of 27961392 is 29316972.

It is a self number, because there is not a number n which added to its sum of digits gives 27961392.

It is not an unprimeable number, because it can be changed into a prime (27961393) 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, 7978 + ... + 10934.

Almost surely, 2^27961392 is an apocalyptic number.

It is an amenable number.

27961392 is an abundant number, since it is smaller than the sum of its proper divisors (44663424).

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

27961392 is a wasteful number, since it uses less digits than its factorization.

27961392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165 (or 3159 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 27961392 is about 5287.8532506113. The cubic root of 27961392 is about 303.5192655774.

The spelling of 27961392 in words is "twenty-seven million, nine hundred sixty-one thousand, three hundred ninety-two".