27901332 has 18 divisors (see below), whose sum is σ = 70528458. Its totient is φ = 9300432.

The previous prime is 27901319. The next prime is 27901381. The reversal of 27901332 is 23310972.

It can be written as a sum of positive squares in only one way, i.e., 14107536 + 13793796 = 3756^2 + 3714^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 27901296 and 27901305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 387483 + ... + 387554.

Almost surely, 2^27901332 is an apocalyptic number.

It is an amenable number.

27901332 is an abundant number, since it is smaller than the sum of its proper divisors (42627126).

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

27901332 is a wasteful number, since it uses less digits than its factorization.

27901332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775047 (or 775042 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 27901332 is about 5282.1711445200. The cubic root of 27901332 is about 303.3017938735.

The spelling of 27901332 in words is "twenty-seven million, nine hundred one thousand, three hundred thirty-two".