846640764 has 36 divisors (see below), whose sum is σ = 2233170576. Its totient is φ = 269943168.

The previous prime is 846640763. The next prime is 846640841. The reversal of 846640764 is 467046648.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846640763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510429 + ... + 512084.

It is an arithmetic number, because the mean of its divisors is an integer number (62032516).

Almost surely, 2^846640764 is an apocalyptic number.

It is an amenable number.

846640764 is an abundant number, since it is smaller than the sum of its proper divisors (1386529812).

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

846640764 is a wasteful number, since it uses less digits than its factorization.

846640764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022546 (or 1022541 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 846640764 is about 29097.0920196503. The cubic root of 846640764 is about 946.0187082760.

The spelling of 846640764 in words is "eight hundred forty-six million, six hundred forty thousand, seven hundred sixty-four".