874212921 has 12 divisors (see below), whose sum is σ = 1269365760. Its totient is φ = 579756120.

The previous prime is 874212901. The next prime is 874212953. The reversal of 874212921 is 129212478.

It is not a de Polignac number, because 874212921 - 2¹³ = 874204729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (874212901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252561 + ... + 255998.

It is an arithmetic number, because the mean of its divisors is an integer number (105780480).

Almost surely, 2^874212921 is an apocalyptic number.

It is an amenable number.

874212921 is a deficient number, since it is larger than the sum of its proper divisors (395152839).

874212921 is a wasteful number, since it uses less digits than its factorization.

874212921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508756 (or 508753 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 874212921 is about 29567.0918590246. The cubic root of 874212921 is about 956.1787190748.

The spelling of 874212921 in words is "eight hundred seventy-four million, two hundred twelve thousand, nine hundred twenty-one".