392971 has 4 divisors (see below), whose sum is σ = 395632. Its totient is φ = 390312.

The previous prime is 392969. The next prime is 392981. The reversal of 392971 is 179293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179293 = 41 ⋅4373.

It is a cyclic number.

It is not a de Polignac number, because 392971 - 2¹ = 392969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (392911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (98908).

2³⁹²⁹⁷¹ is an apocalyptic number.

392971 is a deficient number, since it is larger than the sum of its proper divisors (2661).

392971 is a wasteful number, since it uses less digits than its factorization.

392971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660.

The product of its digits is 3402, while the sum is 31.

The square root of 392971 is about 626.8739905276. The cubic root of 392971 is about 73.2464927052.

The spelling of 392971 in words is "three hundred ninety-two thousand, nine hundred seventy-one".