64116427 has 2 divisors, whose sum is σ = 64116428. Its totient is φ = 64116426.

The previous prime is 64116383. The next prime is 64116439. The reversal of 64116427 is 72461146.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64116427 is a prime.

It is a super-2 number, since 2×64116427² = 8221832422492658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64116457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32058213 + 32058214.

It is an arithmetic number, because the mean of its divisors is an integer number (32058214).

Almost surely, 2^64116427 is an apocalyptic number.

64116427 is a deficient number, since it is larger than the sum of its proper divisors (1).

64116427 is an equidigital number, since it uses as much as digits as its factorization.

64116427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 64116427 is about 8007.2733811204. The cubic root of 64116427 is about 400.2424093146.

The spelling of 64116427 in words is "sixty-four million, one hundred sixteen thousand, four hundred twenty-seven".