708694644 has 72 divisors (see below), whose sum is σ = 1952418720. Its totient is φ = 199450944.

The previous prime is 708694639. The next prime is 708694687. The reversal of 708694644 is 446496807.

It is a junction number, because it is equal to n+sod(n) for n = 708694593 and 708694602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30402 + ... + 48390.

Almost surely, 2^708694644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 708694644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976209360).

708694644 is an abundant number, since it is smaller than the sum of its proper divisors (1243724076).

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

708694644 is a wasteful number, since it uses less digits than its factorization.

708694644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18077 (or 18068 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 708694644 is about 26621.3193512268. The cubic root of 708694644 is about 891.5650801942.

The spelling of 708694644 in words is "seven hundred eight million, six hundred ninety-four thousand, six hundred forty-four".