392085221 has 8 divisors (see below), whose sum is σ = 428434464. Its totient is φ = 355853520.

The previous prime is 392085203. The next prime is 392085251. The reversal of 392085221 is 122580293.

It is a happy number.

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

It is not a de Polignac number, because 392085221 - 2¹⁸ = 391823077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392085251) 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, 22331 + ... + 35816.

It is an arithmetic number, because the mean of its divisors is an integer number (53554308).

Almost surely, 2^392085221 is an apocalyptic number.

It is an amenable number.

392085221 is a deficient number, since it is larger than the sum of its proper divisors (36349243).

392085221 is a wasteful number, since it uses less digits than its factorization.

392085221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58771.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 392085221 is about 19801.1419115161. The cubic root of 392085221 is about 731.9141738236.

The spelling of 392085221 in words is "three hundred ninety-two million, eighty-five thousand, two hundred twenty-one".