27620957 has 24 divisors (see below), whose sum is σ = 34971552. Its totient is φ = 21621600.

The previous prime is 27620947. The next prime is 27620959. The reversal of 27620957 is 75902672.

It is not a de Polignac number, because 27620957 - 2⁴ = 27620941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27620957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27620959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83282 + ... + 83612.

It is an arithmetic number, because the mean of its divisors is an integer number (1457148).

Almost surely, 2^27620957 is an apocalyptic number.

It is an amenable number.

27620957 is a deficient number, since it is larger than the sum of its proper divisors (7350595).

27620957 is a wasteful number, since it uses less digits than its factorization.

27620957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 27620957 is about 5255.5643845357. The cubic root of 27620957 is about 302.2824317207.

The spelling of 27620957 in words is "twenty-seven million, six hundred twenty thousand, nine hundred fifty-seven".