63077985 has 24 divisors (see below), whose sum is σ = 110071104. Its totient is φ = 33415200.

The previous prime is 63077981. The next prime is 63077999. The reversal of 63077985 is 58977036.

It is a happy number.

63077985 is a `hidden beast` number, since 630 + 7 + 7 + 9 + 8 + 5 = 666.

It is not a de Polignac number, because 63077985 - 2² = 63077981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63077985.

It is not an unprimeable number, because it can be changed into a prime (63077981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2154 + ... + 11436.

It is an arithmetic number, because the mean of its divisors is an integer number (4586296).

Almost surely, 2^63077985 is an apocalyptic number.

It is an amenable number.

63077985 is a deficient number, since it is larger than the sum of its proper divisors (46993119).

63077985 is a wasteful number, since it uses less digits than its factorization.

63077985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9445 (or 9442 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 63077985 is about 7942.1650070998. The cubic root of 63077985 is about 398.0698365705.

The spelling of 63077985 in words is "sixty-three million, seventy-seven thousand, nine hundred eighty-five".