630825679 has 8 divisors (see below), whose sum is σ = 693198288. Its totient is φ = 569290560.

The previous prime is 630825677. The next prime is 630825683. The reversal of 630825679 is 976528036.

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

It is a cyclic number.

It is not a de Polignac number, because 630825679 - 2¹ = 630825677 is a prime.

It is a super-2 number, since 2×630825679² = 795882074571622082, 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 (630825677) 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, 207792 + ... + 210805.

It is an arithmetic number, because the mean of its divisors is an integer number (86649786).

Almost surely, 2^630825679 is an apocalyptic number.

630825679 is a deficient number, since it is larger than the sum of its proper divisors (62372609).

630825679 is a wasteful number, since it uses less digits than its factorization.

630825679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418745.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 630825679 is about 25116.2433297657. The cubic root of 630825679 is about 857.6362343366.

The spelling of 630825679 in words is "six hundred thirty million, eight hundred twenty-five thousand, six hundred seventy-nine".