905799664 has 160 divisors (see below), whose sum is σ = 2323279872. Its totient is φ = 331776000.

The previous prime is 905799641. The next prime is 905799691. The reversal of 905799664 is 466997509.

It is a congruent number.

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, 1412784 + ... + 1413424.

Almost surely, 2^905799664 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 905799664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1161639936).

905799664 is an abundant number, since it is smaller than the sum of its proper divisors (1417480208).

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

905799664 is a wasteful number, since it uses less digits than its factorization.

905799664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 55.

The square root of 905799664 is about 30096.5058437022. The cubic root of 905799664 is about 967.5588397959.

The spelling of 905799664 in words is "nine hundred five million, seven hundred ninety-nine thousand, six hundred sixty-four".