872227494 has 24 divisors (see below), whose sum is σ = 1938765720. Its totient is φ = 290670156.

The previous prime is 872227493. The next prime is 872227511. The reversal of 872227494 is 494722278.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872227493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215017 + ... + 219035.

It is an arithmetic number, because the mean of its divisors is an integer number (80781905).

Almost surely, 2^872227494 is an apocalyptic number.

872227494 is an abundant number, since it is smaller than the sum of its proper divisors (1066538226).

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

872227494 is an frugal number, since it uses more digits than its factorization.

872227494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8049 (or 4024 counting only the distinct ones).

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

The square root of 872227494 is about 29533.4978287368. The cubic root of 872227494 is about 955.4543104907.

The spelling of 872227494 in words is "eight hundred seventy-two million, two hundred twenty-seven thousand, four hundred ninety-four".