874425021 has 8 divisors (see below), whose sum is σ = 1169361024. Its totient is φ = 581219520.

The previous prime is 874425007. The next prime is 874425047. The reversal of 874425021 is 120524478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 874425021 - 2¹⁴ = 874408637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874425061) 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 7 ways as a sum of consecutive naturals, for example, 431445 + ... + 433466.

It is an arithmetic number, because the mean of its divisors is an integer number (146170128).

Almost surely, 2^874425021 is an apocalyptic number.

It is an amenable number.

874425021 is a deficient number, since it is larger than the sum of its proper divisors (294936003).

874425021 is a wasteful number, since it uses less digits than its factorization.

874425021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865251.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 874425021 is about 29570.6783993875. The cubic root of 874425021 is about 956.2560416210.

Adding to 874425021 its reverse (120524478), we get a palindrome (994949499).

The spelling of 874425021 in words is "eight hundred seventy-four million, four hundred twenty-five thousand, twenty-one".