63961499 has 8 divisors (see below), whose sum is σ = 73164768. Its totient is φ = 54774720.

The previous prime is 63961453. The next prime is 63961537. The reversal of 63961499 is 99416936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63961499 - 2⁸ = 63961243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63961409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5789 + ... + 12705.

It is an arithmetic number, because the mean of its divisors is an integer number (9145596).

Almost surely, 2^63961499 is an apocalyptic number.

63961499 is a deficient number, since it is larger than the sum of its proper divisors (9203269).

63961499 is a wasteful number, since it uses less digits than its factorization.

63961499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245.

The product of its digits is 314928, while the sum is 47.

The square root of 63961499 is about 7997.5933254949. The cubic root of 63961499 is about 399.9197734937.

The spelling of 63961499 in words is "sixty-three million, nine hundred sixty-one thousand, four hundred ninety-nine".