63591413 has 4 divisors (see below), whose sum is σ = 63704928. Its totient is φ = 63477900.

The previous prime is 63591397. The next prime is 63591431. The reversal of 63591413 is 31419536.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63591413 - 2⁴ = 63591397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63591413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63591433) 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, 55913 + ... + 57038.

It is an arithmetic number, because the mean of its divisors is an integer number (15926232).

Almost surely, 2^63591413 is an apocalyptic number.

It is an amenable number.

63591413 is a deficient number, since it is larger than the sum of its proper divisors (113515).

63591413 is a wasteful number, since it uses less digits than its factorization.

63591413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113514.

The product of its digits is 9720, while the sum is 32.

The square root of 63591413 is about 7974.4224242261. The cubic root of 63591413 is about 399.1469591799.

The spelling of 63591413 in words is "sixty-three million, five hundred ninety-one thousand, four hundred thirteen".