392869 has 4 divisors (see below), whose sum is σ = 396000. Its totient is φ = 389740.

The previous prime is 392857. The next prime is 392879. The reversal of 392869 is 968293.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 968293 = 733 ⋅1321.

It is a cyclic number.

It is not a de Polignac number, because 392869 - 2⁵ = 392837 is a prime.

It is a super-3 number, since 3×392869³ = 181913336320712727, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392809) 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, 1369 + ... + 1630.

It is an arithmetic number, because the mean of its divisors is an integer number (99000).

2³⁹²⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

392869 is a deficient number, since it is larger than the sum of its proper divisors (3131).

392869 is a wasteful number, since it uses less digits than its factorization.

392869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130.

The product of its digits is 23328, while the sum is 37.

The square root of 392869 is about 626.7926291845. The cubic root of 392869 is about 73.2401548425.

The spelling of 392869 in words is "three hundred ninety-two thousand, eight hundred sixty-nine".