63579982 has 4 divisors (see below), whose sum is σ = 95369976. Its totient is φ = 31789990.

The previous prime is 63579979. The next prime is 63579991. The reversal of 63579982 is 28997536.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×63579982² = 8084828222240648, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15894994 + ... + 15894997.

It is an arithmetic number, because the mean of its divisors is an integer number (23842494).

Almost surely, 2^63579982 is an apocalyptic number.

63579982 is a deficient number, since it is larger than the sum of its proper divisors (31789994).

63579982 is a wasteful number, since it uses less digits than its factorization.

63579982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31789993.

The product of its digits is 816480, while the sum is 49.

The square root of 63579982 is about 7973.7056629901. The cubic root of 63579982 is about 399.1230412635.

The spelling of 63579982 in words is "sixty-three million, five hundred seventy-nine thousand, nine hundred eighty-two".