347664408 has 96 divisors (see below), whose sum is σ = 1088886960. Its totient is φ = 91687680.

The previous prime is 347664391. The next prime is 347664419. The reversal of 347664408 is 804466743.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 347664408.

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, 3918 + ... + 26658.

Almost surely, 2^347664408 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 347664408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544443480).

347664408 is an abundant number, since it is smaller than the sum of its proper divisors (741222552).

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

347664408 is a wasteful number, since it uses less digits than its factorization.

347664408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22777 (or 22766 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 347664408 is about 18645.7611268621. The cubic root of 347664408 is about 703.1587909963.

The spelling of 347664408 in words is "three hundred forty-seven million, six hundred sixty-four thousand, four hundred eight".