680237631 has 12 divisors (see below), whose sum is σ = 988595608. Its totient is φ = 450708624.

The previous prime is 680237629. The next prime is 680237653. The reversal of 680237631 is 136732086.

It is a happy number.

It is not a de Polignac number, because 680237631 - 2¹ = 680237629 is a prime.

It is a super-2 number, since 2×680237631² = 925446469256984322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680237671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230380 + ... + 233313.

Almost surely, 2^680237631 is an apocalyptic number.

680237631 is a deficient number, since it is larger than the sum of its proper divisors (308357977).

680237631 is a wasteful number, since it uses less digits than its factorization.

680237631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463862 (or 463859 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 680237631 is about 26081.3655892478. The cubic root of 680237631 is about 879.4683561325.

The spelling of 680237631 in words is "six hundred eighty million, two hundred thirty-seven thousand, six hundred thirty-one".