63961494 has 32 divisors (see below), whose sum is σ = 132550656. Its totient is φ = 20554560.

The previous prime is 63961453. The next prime is 63961537. The reversal of 63961494 is 49416936.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67794 + ... + 68730.

It is an arithmetic number, because the mean of its divisors is an integer number (4142208).

Almost surely, 2^63961494 is an apocalyptic number.

63961494 is an abundant number, since it is smaller than the sum of its proper divisors (68589162).

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

63961494 is a wasteful number, since it uses less digits than its factorization.

63961494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340.

The product of its digits is 139968, while the sum is 42.

The square root of 63961494 is about 7997.5930129008. The cubic root of 63961494 is about 399.9197630728.

The spelling of 63961494 in words is "sixty-three million, nine hundred sixty-one thousand, four hundred ninety-four".