68603631 has 8 divisors (see below), whose sum is σ = 91516080. Its totient is φ = 45713472.

The previous prime is 68603629. The next prime is 68603659. The reversal of 68603631 is 13630686.

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

It is not a de Polignac number, because 68603631 - 2¹ = 68603629 is a prime.

It is a super-2 number, since 2×68603631² = 9412916372768322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68603592 and 68603601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68603671) 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, 3925 + ... + 12353.

It is an arithmetic number, because the mean of its divisors is an integer number (11439510).

Almost surely, 2^68603631 is an apocalyptic number.

68603631 is a deficient number, since it is larger than the sum of its proper divisors (22912449).

68603631 is a wasteful number, since it uses less digits than its factorization.

68603631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11145.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 68603631 is about 8282.7308902318. The cubic root of 68603631 is about 409.3697057451.

The spelling of 68603631 in words is "sixty-eight million, six hundred three thousand, six hundred thirty-one".