63490013 has 4 divisors (see below), whose sum is σ = 63623040. Its totient is φ = 63356988.

The previous prime is 63489989. The next prime is 63490027. The reversal of 63490013 is 31009436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63490013 - 2⁶ = 63489949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63490033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65795 + ... + 66752.

It is an arithmetic number, because the mean of its divisors is an integer number (15905760).

Almost surely, 2^63490013 is an apocalyptic number.

It is an amenable number.

63490013 is a deficient number, since it is larger than the sum of its proper divisors (133027).

63490013 is a wasteful number, since it uses less digits than its factorization.

63490013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133026.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 63490013 is about 7968.0620605013. The cubic root of 63490013 is about 398.9346924014.

Adding to 63490013 its reverse (31009436), we get a palindrome (94499449).

The spelling of 63490013 in words is "sixty-three million, four hundred ninety thousand, thirteen".