63876994 has 4 divisors (see below), whose sum is σ = 95815494. Its totient is φ = 31938496.

The previous prime is 63876977. The next prime is 63876997. The reversal of 63876994 is 49967836.

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

It can be written as a sum of positive squares in only one way, i.e., 58293225 + 5583769 = 7635^2 + 2363^2 .

It is not an unprimeable number, because it can be changed into a prime (63876997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15969247 + ... + 15969250.

Almost surely, 2^63876994 is an apocalyptic number.

63876994 is a deficient number, since it is larger than the sum of its proper divisors (31938500).

63876994 is a wasteful number, since it uses less digits than its factorization.

63876994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31938499.

The product of its digits is 1959552, while the sum is 52.

The square root of 63876994 is about 7992.3084274820. The cubic root of 63876994 is about 399.7435731483.

The spelling of 63876994 in words is "sixty-three million, eight hundred seventy-six thousand, nine hundred ninety-four".