27031345 has 16 divisors (see below), whose sum is σ = 36142848. Its totient is φ = 19239040.

The previous prime is 27031339. The next prime is 27031363. The reversal of 27031345 is 54313072.

It is not a de Polignac number, because 27031345 - 2⁵ = 27031313 is a prime.

It is a super-2 number, since 2×27031345² = 1461387225018050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2644 + ... + 7813.

It is an arithmetic number, because the mean of its divisors is an integer number (2258928).

Almost surely, 2^27031345 is an apocalyptic number.

It is an amenable number.

27031345 is a deficient number, since it is larger than the sum of its proper divisors (9111503).

27031345 is a wasteful number, since it uses less digits than its factorization.

27031345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10520.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 27031345 is about 5199.1677218570. The cubic root of 27031345 is about 300.1160476966.

The spelling of 27031345 in words is "twenty-seven million, thirty-one thousand, three hundred forty-five".