63649272 has 32 divisors (see below), whose sum is σ = 159408000. Its totient is φ = 21178464.

The previous prime is 63649253. The next prime is 63649283. The reversal of 63649272 is 27294636.

It is a super-2 number, since 2×63649272² = 8102459652259968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63649272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13479 + ... + 17577.

It is an arithmetic number, because the mean of its divisors is an integer number (4981500).

Almost surely, 2^63649272 is an apocalyptic number.

It is an amenable number.

63649272 is an abundant number, since it is smaller than the sum of its proper divisors (95758728).

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

63649272 is a wasteful number, since it uses less digits than its factorization.

63649272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755 (or 4751 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 63649272 is about 7978.0493856581. The cubic root of 63649272 is about 399.2679778428.

The spelling of 63649272 in words is "sixty-three million, six hundred forty-nine thousand, two hundred seventy-two".