392661 has 8 divisors (see below), whose sum is σ = 581760. Its totient is φ = 261756.

The previous prime is 392647. The next prime is 392663. The reversal of 392661 is 166293.

It is a happy number.

It is not a de Polignac number, because 392661 - 2⁵ = 392629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 14543 = 392661 / (3 + 9 + 2 + 6 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392663) 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, 7245 + ... + 7298.

It is an arithmetic number, because the mean of its divisors is an integer number (72720).

2³⁹²⁶⁶¹ is an apocalyptic number.

It is an amenable number.

392661 is a deficient number, since it is larger than the sum of its proper divisors (189099).

392661 is a wasteful number, since it uses less digits than its factorization.

392661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14552 (or 14546 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 392661 is about 626.6266831216. The cubic root of 392661 is about 73.2272271732.

The spelling of 392661 in words is "three hundred ninety-two thousand, six hundred sixty-one".