64494363 has 4 divisors (see below), whose sum is σ = 85992488. Its totient is φ = 42996240.

The previous prime is 64494349. The next prime is 64494371. The reversal of 64494363 is 36349446.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64494363 - 2⁶ = 64494299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64494383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10749058 + ... + 10749063.

It is an arithmetic number, because the mean of its divisors is an integer number (21498122).

Almost surely, 2^64494363 is an apocalyptic number.

64494363 is a deficient number, since it is larger than the sum of its proper divisors (21498125).

64494363 is a wasteful number, since it uses less digits than its factorization.

64494363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21498124.

The product of its digits is 186624, while the sum is 39.

The square root of 64494363 is about 8030.8382501455. The cubic root of 64494363 is about 401.0272823854.

The spelling of 64494363 in words is "sixty-four million, four hundred ninety-four thousand, three hundred sixty-three".