872099541 has 48 divisors (see below), whose sum is σ = 1396833984. Its totient is φ = 541810944.

The previous prime is 872099539. The next prime is 872099567. The reversal of 872099541 is 145990278.

872099541 is a `hidden beast` number, since 87 + 20 + 9 + 9 + 541 = 666.

It is not a de Polignac number, because 872099541 - 2¹ = 872099539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872099521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 441031 + ... + 443003.

It is an arithmetic number, because the mean of its divisors is an integer number (29100708).

Almost surely, 2^872099541 is an apocalyptic number.

872099541 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

872099541 is a deficient number, since it is larger than the sum of its proper divisors (524734443).

872099541 is a wasteful number, since it uses less digits than its factorization.

872099541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112 (or 2100 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 872099541 is about 29531.3315141732. The cubic root of 872099541 is about 955.4075875028.

The spelling of 872099541 in words is "eight hundred seventy-two million, ninety-nine thousand, five hundred forty-one".