63424691 has 6 divisors (see below), whose sum is σ = 69714876. Its totient is φ = 57658700.

The previous prime is 63424633. The next prime is 63424721. The reversal of 63424691 is 19642436.

It is a de Polignac number, because none of the positive numbers 2^k-63424691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63424601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 261965 + ... + 262206.

It is an arithmetic number, because the mean of its divisors is an integer number (11619146).

Almost surely, 2^63424691 is an apocalyptic number.

63424691 is a deficient number, since it is larger than the sum of its proper divisors (6290185).

63424691 is a wasteful number, since it uses less digits than its factorization.

63424691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524193 (or 524182 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 63424691 is about 7963.9620164840. The cubic root of 63424691 is about 398.7978301722.

The spelling of 63424691 in words is "sixty-three million, four hundred twenty-four thousand, six hundred ninety-one".