64494495 has 32 divisors (see below), whose sum is σ = 123480000. Its totient is φ = 31750272.

The previous prime is 64494467. The next prime is 64494503. The reversal of 64494495 is 59449446.

It is not a de Polignac number, because 64494495 - 2⁸ = 64494239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64494495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16620 + ... + 20129.

It is an arithmetic number, because the mean of its divisors is an integer number (3858750).

Almost surely, 2^64494495 is an apocalyptic number.

64494495 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64494495 is a deficient number, since it is larger than the sum of its proper divisors (58985505).

64494495 is a wasteful number, since it uses less digits than its factorization.

64494495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36776 (or 36770 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 64494495 is about 8030.8464684615. The cubic root of 64494495 is about 401.0275559781.

The spelling of 64494495 in words is "sixty-four million, four hundred ninety-four thousand, four hundred ninety-five".