63479566 has 4 divisors (see below), whose sum is σ = 95219352. Its totient is φ = 31739782.

The previous prime is 63479557. The next prime is 63479597. The reversal of 63479566 is 66597436.

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

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, 15869890 + ... + 15869893.

It is an arithmetic number, because the mean of its divisors is an integer number (23804838).

Almost surely, 2^63479566 is an apocalyptic number.

63479566 is a deficient number, since it is larger than the sum of its proper divisors (31739786).

63479566 is a wasteful number, since it uses less digits than its factorization.

63479566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31739785.

The product of its digits is 816480, while the sum is 46.

The square root of 63479566 is about 7967.4064788989. The cubic root of 63479566 is about 398.9128102231.

It can be divided in two parts, 634 and 79566, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 63479566 in words is "sixty-three million, four hundred seventy-nine thousand, five hundred sixty-six".