27930757 has 2 divisors, whose sum is σ = 27930758. Its totient is φ = 27930756.

The previous prime is 27930751. The next prime is 27930787. The reversal of 27930757 is 75703972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26204161 + 1726596 = 5119^2 + 1314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27930757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27930751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13965378 + 13965379.

It is an arithmetic number, because the mean of its divisors is an integer number (13965379).

Almost surely, 2^27930757 is an apocalyptic number.

It is an amenable number.

27930757 is a deficient number, since it is larger than the sum of its proper divisors (1).

27930757 is an equidigital number, since it uses as much as digits as its factorization.

27930757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92610, while the sum is 40.

The square root of 27930757 is about 5284.9557235610. The cubic root of 27930757 is about 303.4083780297.

The spelling of 27930757 in words is "twenty-seven million, nine hundred thirty thousand, seven hundred fifty-seven".