63979371 has 6 divisors (see below), whose sum is σ = 92414660. Its totient is φ = 42652908.

The previous prime is 63979367. The next prime is 63979373. The reversal of 63979371 is 17397936.

63979371 is a `hidden beast` number, since 639 + 7 + 9 + 3 + 7 + 1 = 666.

It is not a de Polignac number, because 63979371 - 2² = 63979367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63979373) 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, 3554401 + ... + 3554418.

Almost surely, 2^63979371 is an apocalyptic number.

63979371 is a deficient number, since it is larger than the sum of its proper divisors (28435289).

63979371 is a wasteful number, since it uses less digits than its factorization.

63979371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7108825 (or 7108822 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 63979371 is about 7998.7105835878. The cubic root of 63979371 is about 399.9570182983.

The spelling of 63979371 in words is "sixty-three million, nine hundred seventy-nine thousand, three hundred seventy-one".