672830634 has 64 divisors (see below), whose sum is σ = 1609482240. Its totient is φ = 183461760.

The previous prime is 672830629. The next prime is 672830677. The reversal of 672830634 is 436038276.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 672830592 and 672830601.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91507 + ... + 98585.

It is an arithmetic number, because the mean of its divisors is an integer number (25148160).

Almost surely, 2^672830634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672830634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804741120).

672830634 is an abundant number, since it is smaller than the sum of its proper divisors (936651606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672830634 is a wasteful number, since it uses less digits than its factorization.

672830634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7195.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 672830634 is about 25938.9790469864. The cubic root of 672830634 is about 876.2645700103.

The spelling of 672830634 in words is "six hundred seventy-two million, eight hundred thirty thousand, six hundred thirty-four".