27976401 has 8 divisors (see below), whose sum is σ = 41446560. Its totient is φ = 18650916.

The previous prime is 27976397. The next prime is 27976409. The reversal of 27976401 is 10467972.

It is a happy number.

27976401 is a `hidden beast` number, since 2 + 7 + 9 + 7 + 640 + 1 = 666.

It is not a de Polignac number, because 27976401 - 2² = 27976397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27976409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518055 + ... + 518108.

It is an arithmetic number, because the mean of its divisors is an integer number (5180820).

Almost surely, 2^27976401 is an apocalyptic number.

It is an amenable number.

27976401 is a deficient number, since it is larger than the sum of its proper divisors (13470159).

27976401 is a wasteful number, since it uses less digits than its factorization.

27976401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036172 (or 1036166 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 27976401 is about 5289.2722561804. The cubic root of 27976401 is about 303.5735631341.

The spelling of 27976401 in words is "twenty-seven million, nine hundred seventy-six thousand, four hundred one".