27956404 has 12 divisors (see below), whose sum is σ = 55912864. Its totient is φ = 11981304.

The previous prime is 27956393. The next prime is 27956419. The reversal of 27956404 is 40465972.

27956404 is an admirable number.

It is a super-2 number, since 2×27956404² = 1563121049222432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499194 + ... + 499249.

Almost surely, 2^27956404 is an apocalyptic number.

It is an amenable number.

27956404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27956404 is a wasteful number, since it uses less digits than its factorization.

27956404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998454 (or 998452 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 27956404 is about 5287.3815825983. The cubic root of 27956404 is about 303.5012163552.

The spelling of 27956404 in words is "twenty-seven million, nine hundred fifty-six thousand, four hundred four".