64484731 has 2 divisors, whose sum is σ = 64484732. Its totient is φ = 64484730.

The previous prime is 64484713. The next prime is 64484773. The reversal of 64484731 is 13748446.

Together with previous prime (64484713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64484731 - 2¹³ = 64476539 is a prime.

It is a super-2 number, since 2×64484731² = 8316561064284722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64484711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32242365 + 32242366.

It is an arithmetic number, because the mean of its divisors is an integer number (32242366).

Almost surely, 2^64484731 is an apocalyptic number.

64484731 is a deficient number, since it is larger than the sum of its proper divisors (1).

64484731 is an equidigital number, since it uses as much as digits as its factorization.

64484731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 37.

The square root of 64484731 is about 8030.2385394209. The cubic root of 64484731 is about 401.0073173997.

The spelling of 64484731 in words is "sixty-four million, four hundred eighty-four thousand, seven hundred thirty-one".