874756221 has 16 divisors (see below), whose sum is σ = 1184965824. Its totient is φ = 573876864.

The previous prime is 874756193. The next prime is 874756247. The reversal of 874756221 is 122657478.

It is not a de Polignac number, because 874756221 - 2⁵ = 874756189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874756291) 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, 286515 + ... + 289551.

It is an arithmetic number, because the mean of its divisors is an integer number (74060364).

Almost surely, 2^874756221 is an apocalyptic number.

It is an amenable number.

874756221 is a deficient number, since it is larger than the sum of its proper divisors (310209603).

874756221 is a wasteful number, since it uses less digits than its factorization.

874756221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540.

The product of its digits is 188160, while the sum is 42.

The square root of 874756221 is about 29576.2780112711. The cubic root of 874756221 is about 956.3767579072.

The spelling of 874756221 in words is "eight hundred seventy-four million, seven hundred fifty-six thousand, two hundred twenty-one".