877157772 has 144 divisors (see below), whose sum is σ = 2310604800. Its totient is φ = 258508800.

The previous prime is 877157767. The next prime is 877157783. The reversal of 877157772 is 277751778.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4407729 + ... + 4407927.

Almost surely, 2^877157772 is an apocalyptic number.

877157772 is a gapful number since it is divisible by the number (82) 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 877157772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155302400).

877157772 is an abundant number, since it is smaller than the sum of its proper divisors (1433447028).

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

877157772 is a wasteful number, since it uses less digits than its factorization.

877157772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 293 counting only the distinct ones).

The product of its digits is 1344560, while the sum is 51.

The square root of 877157772 is about 29616.8494610754. The cubic root of 877157772 is about 957.2511687207.

The spelling of 877157772 in words is "eight hundred seventy-seven million, one hundred fifty-seven thousand, seven hundred seventy-two".