63342631 has 16 divisors (see below), whose sum is σ = 71705088. Its totient is φ = 55447200.

The previous prime is 63342619. The next prime is 63342661. The reversal of 63342631 is 13624336.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63342631 is a prime.

It is a super-2 number, since 2×63342631² = 8024577804004322, 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 63342631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63342661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41166 + ... + 42676.

It is an arithmetic number, because the mean of its divisors is an integer number (4481568).

Almost surely, 2^63342631 is an apocalyptic number.

63342631 is a deficient number, since it is larger than the sum of its proper divisors (8362457).

63342631 is a wasteful number, since it uses less digits than its factorization.

63342631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662.

The product of its digits is 7776, while the sum is 28.

The square root of 63342631 is about 7958.8083907077. The cubic root of 63342631 is about 398.6257653547.

Adding to 63342631 its reverse (13624336), we get a palindrome (76966967).

It can be divided in two parts, 633 and 42631, that added together give a square (43264 = 208²).

The spelling of 63342631 in words is "sixty-three million, three hundred forty-two thousand, six hundred thirty-one".