874229721 has 16 divisors (see below), whose sum is σ = 1181756160. Its totient is φ = 574778880.

The previous prime is 874229693. The next prime is 874229731. The reversal of 874229721 is 127922478.

It is not a de Polignac number, because 874229721 - 2¹⁴ = 874213337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (874229731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285961 + ... + 289001.

It is an arithmetic number, because the mean of its divisors is an integer number (73859760).

Almost surely, 2^874229721 is an apocalyptic number.

It is an amenable number.

874229721 is a deficient number, since it is larger than the sum of its proper divisors (307526439).

874229721 is a wasteful number, since it uses less digits than its factorization.

874229721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336.

The product of its digits is 112896, while the sum is 42.

The square root of 874229721 is about 29567.3759572946. The cubic root of 874229721 is about 956.1848440889.

The spelling of 874229721 in words is "eight hundred seventy-four million, two hundred twenty-nine thousand, seven hundred twenty-one".