63979476 has 72 divisors (see below), whose sum is σ = 165792480. Its totient is φ = 19187520.

The previous prime is 63979469. The next prime is 63979499. The reversal of 63979476 is 67497936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201670 + ... + 201986.

Almost surely, 2^63979476 is an apocalyptic number.

63979476 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63979476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82896240).

63979476 is an abundant number, since it is smaller than the sum of its proper divisors (101813004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63979476 is a wasteful number, since it uses less digits than its factorization.

63979476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 472 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 51.

The square root of 63979476 is about 7998.7171471430. The cubic root of 63979476 is about 399.9572370952.

The spelling of 63979476 in words is "sixty-three million, nine hundred seventy-nine thousand, four hundred seventy-six".