877832640 has 392 divisors, whose sum is σ = 3238183008. Its totient is φ = 226437120.

The previous prime is 877832629. The next prime is 877832653. The reversal of 877832640 is 46238778.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 12363805 + ... + 12363875.

Almost surely, 2^877832640 is an apocalyptic number.

877832640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 877832640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619091504).

877832640 is an abundant number, since it is smaller than the sum of its proper divisors (2360350368).

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

877832640 is an equidigital number, since it uses as much as digits as its factorization.

877832640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 877832640 is about 29628.2405822553. The cubic root of 877832640 is about 957.4966025507.

The spelling of 877832640 in words is "eight hundred seventy-seven million, eight hundred thirty-two thousand, six hundred forty".