879791040 has 84 divisors (see below), whose sum is σ = 3026124504. Its totient is φ = 234610176.

The previous prime is 879790957. The next prime is 879791041. The reversal of 879791040 is 40197978.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879791041) 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, 149862 + ... + 155621.

Almost surely, 2^879791040 is an apocalyptic number.

879791040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

879791040 is an abundant number, since it is smaller than the sum of its proper divisors (2146333464).

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

879791040 is a wasteful number, since it uses less digits than its factorization.

879791040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305506 (or 305493 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 879791040 is about 29661.2717191964. The cubic root of 879791040 is about 958.2081157799.

The spelling of 879791040 in words is "eight hundred seventy-nine million, seven hundred ninety-one thousand, forty".