63364491 has 32 divisors (see below), whose sum is σ = 100270080. Its totient is φ = 39408768.

The previous prime is 63364481. The next prime is 63364501. The reversal of 63364491 is 19446336.

63364491 is a `hidden beast` number, since 6 + 3 + 3 + 644 + 9 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (63364481) and next prime (63364501).

It is not a de Polignac number, because 63364491 - 2⁷ = 63364363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63364451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57750 + ... + 58836.

It is an arithmetic number, because the mean of its divisors is an integer number (3133440).

Almost surely, 2^63364491 is an apocalyptic number.

63364491 is a deficient number, since it is larger than the sum of its proper divisors (36905589).

63364491 is a wasteful number, since it uses less digits than its factorization.

63364491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240 (or 1234 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 63364491 is about 7960.1815934060. The cubic root of 63364491 is about 398.6716162920.

The spelling of 63364491 in words is "sixty-three million, three hundred sixty-four thousand, four hundred ninety-one".