874411721 has 4 divisors (see below), whose sum is σ = 874473600. Its totient is φ = 874349844.

The previous prime is 874411691. The next prime is 874411763. The reversal of 874411721 is 127114478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 127114478 = 2 ⋅63557239.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-874411721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (874411781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820 + ... + 41858.

It is an arithmetic number, because the mean of its divisors is an integer number (218618400).

Almost surely, 2^874411721 is an apocalyptic number.

It is an amenable number.

874411721 is a deficient number, since it is larger than the sum of its proper divisors (61879).

874411721 is a wasteful number, since it uses less digits than its factorization.

874411721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61878.

The product of its digits is 12544, while the sum is 35.

The square root of 874411721 is about 29570.4535136004. The cubic root of 874411721 is about 956.2511933800.

The spelling of 874411721 in words is "eight hundred seventy-four million, four hundred eleven thousand, seven hundred twenty-one".