27490739 has 4 divisors (see below), whose sum is σ = 28937640. Its totient is φ = 26043840.

The previous prime is 27490733. The next prime is 27490747. The reversal of 27490739 is 93709472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27490739 - 2¹² = 27486643 is a prime.

It is a super-2 number, since 2×27490739² = 1511481461532242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27490696 and 27490705.

It is not an unprimeable number, because it can be changed into a prime (27490733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723422 + ... + 723459.

It is an arithmetic number, because the mean of its divisors is an integer number (7234410).

Almost surely, 2^27490739 is an apocalyptic number.

27490739 is a deficient number, since it is larger than the sum of its proper divisors (1446901).

27490739 is a wasteful number, since it uses less digits than its factorization.

27490739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446900.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 27490739 is about 5243.1611647936. The cubic root of 27490739 is about 301.8066500634.

The spelling of 27490739 in words is "twenty-seven million, four hundred ninety thousand, seven hundred thirty-nine".