27670493 has 4 divisors (see below), whose sum is σ = 27775968. Its totient is φ = 27565020.

The previous prime is 27670483. The next prime is 27670499. The reversal of 27670493 is 39407672.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27670493 - 2⁴ = 27670477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27670499) 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, 52343 + ... + 52868.

It is an arithmetic number, because the mean of its divisors is an integer number (6943992).

Almost surely, 2^27670493 is an apocalyptic number.

It is an amenable number.

27670493 is a deficient number, since it is larger than the sum of its proper divisors (105475).

27670493 is a wasteful number, since it uses less digits than its factorization.

27670493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105474.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 27670493 is about 5260.2749928117. The cubic root of 27670493 is about 302.4630303384.

The spelling of 27670493 in words is "twenty-seven million, six hundred seventy thousand, four hundred ninety-three".