630987693 has 16 divisors (see below), whose sum is σ = 966068736. Its totient is φ = 358853040.

The previous prime is 630987673. The next prime is 630987697. The reversal of 630987693 is 396789036.

It is a happy number.

It is not a de Polignac number, because 630987693 - 2⁶ = 630987629 is a prime.

It is a super-3 number, since 3×630987693³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630987697) 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, 66771 + ... + 75632.

It is an arithmetic number, because the mean of its divisors is an integer number (60379296).

Almost surely, 2^630987693 is an apocalyptic number.

It is an amenable number.

630987693 is a deficient number, since it is larger than the sum of its proper divisors (335081043).

630987693 is a wasteful number, since it uses less digits than its factorization.

630987693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142624.

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 630987693 is about 25119.4684059994. The cubic root of 630987693 is about 857.7096498552.

The spelling of 630987693 in words is "six hundred thirty million, nine hundred eighty-seven thousand, six hundred ninety-three".