992374221 has 8 divisors (see below), whose sum is σ = 1339914880. Its totient is φ = 653208192.

The previous prime is 992374219. The next prime is 992374247. The reversal of 992374221 is 122473299.

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

It is not a de Polignac number, because 992374221 - 2¹ = 992374219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 992374221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992374211) 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, 2093380 + ... + 2093853.

It is an arithmetic number, because the mean of its divisors is an integer number (167489360).

Almost surely, 2^992374221 is an apocalyptic number.

It is an amenable number.

992374221 is a deficient number, since it is larger than the sum of its proper divisors (347540659).

992374221 is a wasteful number, since it uses less digits than its factorization.

992374221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187315.

The product of its digits is 54432, while the sum is 39.

The square root of 992374221 is about 31501.9717001968. The cubic root of 992374221 is about 997.4515847633.

The spelling of 992374221 in words is "nine hundred ninety-two million, three hundred seventy-four thousand, two hundred twenty-one".