392949293 has 4 divisors (see below), whose sum is σ = 428671968. Its totient is φ = 357226620.

The previous prime is 392949283. The next prime is 392949299.

392949293 is nontrivially palindromic in base 10.

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.

It is a cyclic number.

It is not a de Polignac number, because 392949293 - 2⁶ = 392949229 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 (392949299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17861321 + ... + 17861342.

It is an arithmetic number, because the mean of its divisors is an integer number (107167992).

Almost surely, 2^392949293 is an apocalyptic number.

It is an amenable number.

392949293 is a deficient number, since it is larger than the sum of its proper divisors (35722675).

392949293 is a wasteful number, since it uses less digits than its factorization.

392949293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35722674.

The product of its digits is 944784, while the sum is 50.

The square root of 392949293 is about 19822.9486454463. The cubic root of 392949293 is about 732.4514401291.

The spelling of 392949293 in words is "three hundred ninety-two million, nine hundred forty-nine thousand, two hundred ninety-three".