874396551 has 8 divisors (see below), whose sum is σ = 1332413824. Its totient is φ = 499655160.

The previous prime is 874396531. The next prime is 874396591. The reversal of 874396551 is 155693478.

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

It is not a de Polignac number, because 874396551 - 2¹⁵ = 874363783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 874396551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874396531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20818945 + ... + 20818986.

It is an arithmetic number, because the mean of its divisors is an integer number (166551728).

Almost surely, 2^874396551 is an apocalyptic number.

874396551 is a deficient number, since it is larger than the sum of its proper divisors (458017273).

874396551 is a wasteful number, since it uses less digits than its factorization.

874396551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41637941.

The product of its digits is 907200, while the sum is 48.

The square root of 874396551 is about 29570.1970064455. The cubic root of 874396551 is about 956.2456634089.

The spelling of 874396551 in words is "eight hundred seventy-four million, three hundred ninety-six thousand, five hundred fifty-one".