392197397 has 8 divisors (see below), whose sum is σ = 400173120. Its totient is φ = 384289920.

The previous prime is 392197387. The next prime is 392197439. The reversal of 392197397 is 793791293.

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

It is a cyclic number.

It is not a de Polignac number, because 392197397 - 2⁴ = 392197381 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 (392197387) 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, 5372 + ... + 28517.

It is an arithmetic number, because the mean of its divisors is an integer number (50021640).

Almost surely, 2^392197397 is an apocalyptic number.

It is an amenable number.

392197397 is a deficient number, since it is larger than the sum of its proper divisors (7975723).

392197397 is a wasteful number, since it uses less digits than its factorization.

392197397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34123.

The product of its digits is 642978, while the sum is 50.

The square root of 392197397 is about 19803.9742728575. The cubic root of 392197397 is about 731.9839676433.

The spelling of 392197397 in words is "three hundred ninety-two million, one hundred ninety-seven thousand, three hundred ninety-seven".