63340631 has 8 divisors (see below), whose sum is σ = 65751744. Its totient is φ = 60973920.

The previous prime is 63340621. The next prime is 63340637. The reversal of 63340631 is 13604336.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63340631 is a prime.

It is a super-2 number, since 2×63340631² = 8024071070956322, which contains 22 as substring.

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 63340631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63340637) 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, 8180 + ... + 13913.

It is an arithmetic number, because the mean of its divisors is an integer number (8218968).

Almost surely, 2^63340631 is an apocalyptic number.

63340631 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

63340631 is a deficient number, since it is larger than the sum of its proper divisors (2411113).

63340631 is a wasteful number, since it uses less digits than its factorization.

63340631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22201.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 63340631 is about 7958.6827427659. The cubic root of 63340631 is about 398.6215698657.

Adding to 63340631 its reverse (13604336), we get a palindrome (76944967).

The spelling of 63340631 in words is "sixty-three million, three hundred forty thousand, six hundred thirty-one".