647119396 has 48 divisors (see below), whose sum is σ = 1417110912. Its totient is φ = 251193600.

The previous prime is 647119387. The next prime is 647119411. The reversal of 647119396 is 693911746.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82810 + ... + 90286.

It is an arithmetic number, because the mean of its divisors is an integer number (29523144).

Almost surely, 2^647119396 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 647119396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708555456).

647119396 is an abundant number, since it is smaller than the sum of its proper divisors (769991516).

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

647119396 is a wasteful number, since it uses less digits than its factorization.

647119396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780 (or 7778 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The square root of 647119396 is about 25438.5415462444. The cubic root of 647119396 is about 864.9575735147.

The spelling of 647119396 in words is "six hundred forty-seven million, one hundred nineteen thousand, three hundred ninety-six".