629973794 has 32 divisors (see below), whose sum is σ = 1033605360. Its totient is φ = 286820352.

The previous prime is 629973787. The next prime is 629973797. The reversal of 629973794 is 497379926.

It can be written as a sum of positive squares in 8 ways, for example, as 338008225 + 291965569 = 18385^2 + 17087^2 .

It is a super-2 number, since 2×629973794² = 793733962253508872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (629973797) 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, 129152 + ... + 133940.

Almost surely, 2^629973794 is an apocalyptic number.

629973794 is a deficient number, since it is larger than the sum of its proper divisors (403631566).

629973794 is a wasteful number, since it uses less digits than its factorization.

629973794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934.

The product of its digits is 5143824, while the sum is 56.

The square root of 629973794 is about 25099.2787545778. The cubic root of 629973794 is about 857.2500016088.

The spelling of 629973794 in words is "six hundred twenty-nine million, nine hundred seventy-three thousand, seven hundred ninety-four".