63472985 has 16 divisors (see below), whose sum is σ = 84157056. Its totient is φ = 45712128.

The previous prime is 63472963. The next prime is 63472987. The reversal of 63472985 is 58927436.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63472985 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63472987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14279 + ... + 18188.

It is an arithmetic number, because the mean of its divisors is an integer number (5259816).

Almost surely, 2^63472985 is an apocalyptic number.

It is an amenable number.

63472985 is a deficient number, since it is larger than the sum of its proper divisors (20684071).

63472985 is a wasteful number, since it uses less digits than its factorization.

63472985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32512.

The product of its digits is 362880, while the sum is 44.

The square root of 63472985 is about 7966.9934730738. The cubic root of 63472985 is about 398.8990244960.

The spelling of 63472985 in words is "sixty-three million, four hundred seventy-two thousand, nine hundred eighty-five".