27764001 has 6 divisors (see below), whose sum is σ = 40103570. Its totient is φ = 18509328.

The previous prime is 27763979. The next prime is 27764027. The reversal of 27764001 is 10046772.

It can be written as a sum of positive squares in only one way, i.e., 14630625 + 13133376 = 3825^2 + 3624^2 .

It is not a de Polignac number, because 27764001 - 2⁵ = 27763969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27764101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1542436 + ... + 1542453.

Almost surely, 2^27764001 is an apocalyptic number.

It is an amenable number.

27764001 is a deficient number, since it is larger than the sum of its proper divisors (12339569).

27764001 is a wasteful number, since it uses less digits than its factorization.

27764001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084895 (or 3084892 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 27764001 is about 5269.1556249555. The cubic root of 27764001 is about 302.8033557259.

The spelling of 27764001 in words is "twenty-seven million, seven hundred sixty-four thousand, one".