63990741 has 8 divisors (see below), whose sum is σ = 85375840. Its totient is φ = 42633072.

The previous prime is 63990721. The next prime is 63990757. The reversal of 63990741 is 14709936.

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

It is not a de Polignac number, because 63990741 - 2⁶ = 63990677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63990741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63990701) 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, 595 + ... + 11328.

It is an arithmetic number, because the mean of its divisors is an integer number (10671980).

Almost surely, 2^63990741 is an apocalyptic number.

It is an amenable number.

63990741 is a deficient number, since it is larger than the sum of its proper divisors (21385099).

63990741 is a wasteful number, since it uses less digits than its factorization.

63990741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13715.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 63990741 is about 7999.4212915685. The cubic root of 63990741 is about 399.9807094864.

The spelling of 63990741 in words is "sixty-three million, nine hundred ninety thousand, seven hundred forty-one".