630693788 has 6 divisors (see below), whose sum is σ = 1103714136. Its totient is φ = 315346892.

The previous prime is 630693779. The next prime is 630693797. The reversal of 630693788 is 887396036.

It is an interprime number because it is at equal distance from previous prime (630693779) and next prime (630693797).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78836720 + ... + 78836727.

It is an arithmetic number, because the mean of its divisors is an integer number (183952356).

Almost surely, 2^630693788 is an apocalyptic number.

It is an amenable number.

630693788 is a deficient number, since it is larger than the sum of its proper divisors (473020348).

630693788 is a wasteful number, since it uses less digits than its factorization.

630693788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157673451 (or 157673449 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 630693788 is about 25113.6175809062. The cubic root of 630693788 is about 857.5764595639.

The spelling of 630693788 in words is "six hundred thirty million, six hundred ninety-three thousand, seven hundred eighty-eight".