27964513 has 2 divisors, whose sum is σ = 27964514. Its totient is φ = 27964512.

The previous prime is 27964493. The next prime is 27964553. The reversal of 27964513 is 31546972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23541904 + 4422609 = 4852^2 + 2103^2 .

It is a cyclic number.

It is not a de Polignac number, because 27964513 - 2¹⁷ = 27833441 is a prime.

It is not a weakly prime, because it can be changed into another prime (27964553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13982256 + 13982257.

It is an arithmetic number, because the mean of its divisors is an integer number (13982257).

Almost surely, 2^27964513 is an apocalyptic number.

It is an amenable number.

27964513 is a deficient number, since it is larger than the sum of its proper divisors (1).

27964513 is an equidigital number, since it uses as much as digits as its factorization.

27964513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 27964513 is about 5288.1483526845. The cubic root of 27964513 is about 303.5305579144.

The spelling of 27964513 in words is "twenty-seven million, nine hundred sixty-four thousand, five hundred thirteen".