872701380 has 72 divisors (see below), whose sum is σ = 2690624664. Its totient is φ = 228902400.

The previous prime is 872701363. The next prime is 872701381. The reversal of 872701380 is 83107278.

872701380 is a `hidden beast` number, since 8 + 7 + 270 + 1 + 380 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 207936 + 872493444 = 456^2 + 29538^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (872701381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28761 + ... + 50720.

It is an arithmetic number, because the mean of its divisors is an integer number (37369787).

Almost surely, 2^872701380 is an apocalyptic number.

It is an amenable number.

872701380 is an abundant number, since it is smaller than the sum of its proper divisors (1817923284).

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

872701380 is a wasteful number, since it uses less digits than its factorization.

872701380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79557 (or 79552 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 872701380 is about 29541.5195953086. The cubic root of 872701380 is about 955.6273136925.

The spelling of 872701380 in words is "eight hundred seventy-two million, seven hundred one thousand, three hundred eighty".