392491071 has 12 divisors (see below), whose sum is σ = 647921872. Its totient is φ = 224280576.

The previous prime is 392490983. The next prime is 392491081. The reversal of 392491071 is 170194293.

It is not a de Polignac number, because 392491071 - 2¹⁵ = 392458303 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 (392491081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3114946 + ... + 3115071.

Almost surely, 2^392491071 is an apocalyptic number.

392491071 is a deficient number, since it is larger than the sum of its proper divisors (255430801).

392491071 is a wasteful number, since it uses less digits than its factorization.

392491071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6230030 (or 6230027 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 392491071 is about 19811.3874072464. The cubic root of 392491071 is about 732.1666231370.

The spelling of 392491071 in words is "three hundred ninety-two million, four hundred ninety-one thousand, seventy-one".