63476680 has 32 divisors (see below), whose sum is σ = 144167040. Its totient is φ = 25151680.

The previous prime is 63476653. The next prime is 63476681. The reversal of 63476680 is 8667436.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (63476681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3136 + ... + 11695.

It is an arithmetic number, because the mean of its divisors is an integer number (4505220).

Almost surely, 2^63476680 is an apocalyptic number.

It is an amenable number.

63476680 is an abundant number, since it is smaller than the sum of its proper divisors (80690360).

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

63476680 is a wasteful number, since it uses less digits than its factorization.

63476680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14949 (or 14945 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 63476680 is about 7967.2253639520. The cubic root of 63476680 is about 398.9067648141.

The spelling of 63476680 in words is "sixty-three million, four hundred seventy-six thousand, six hundred eighty".