27672491 has 16 divisors (see below), whose sum is σ = 35616768. Its totient is φ = 20865600.

The previous prime is 27672487. The next prime is 27672511. The reversal of 27672491 is 19427672.

It is not a de Polignac number, because 27672491 - 2² = 27672487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27672431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3410 + ... + 8183.

It is an arithmetic number, because the mean of its divisors is an integer number (2226048).

Almost surely, 2^27672491 is an apocalyptic number.

27672491 is a deficient number, since it is larger than the sum of its proper divisors (7944277).

27672491 is a wasteful number, since it uses less digits than its factorization.

27672491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11642.

The product of its digits is 42336, while the sum is 38.

The square root of 27672491 is about 5260.4649034092. The cubic root of 27672491 is about 302.4703101339.

The spelling of 27672491 in words is "twenty-seven million, six hundred seventy-two thousand, four hundred ninety-one".