63928479 has 8 divisors (see below), whose sum is σ = 87987712. Its totient is φ = 41244120.

The previous prime is 63928457. The next prime is 63928481. The reversal of 63928479 is 97482936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63928479 - 2⁸ = 63928223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63928379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343609 + ... + 343794.

It is an arithmetic number, because the mean of its divisors is an integer number (10998464).

Almost surely, 2^63928479 is an apocalyptic number.

63928479 is a deficient number, since it is larger than the sum of its proper divisors (24059233).

63928479 is a wasteful number, since it uses less digits than its factorization.

63928479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687437.

The product of its digits is 653184, while the sum is 48.

The square root of 63928479 is about 7995.5286879605. The cubic root of 63928479 is about 399.8509423781.

The spelling of 63928479 in words is "sixty-three million, nine hundred twenty-eight thousand, four hundred seventy-nine".