9426397939 has 16 divisors (see below), whose sum is σ = 10934611200. Its totient is φ = 7959428064.

The previous prime is 9426397931. The next prime is 9426397987. The reversal of 9426397939 is 9397936249.

It is not a de Polignac number, because 9426397939 - 2³ = 9426397931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9426397931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98917 + ... + 169225.

It is an arithmetic number, because the mean of its divisors is an integer number (683413200).

Almost surely, 2^9426397939 is an apocalyptic number.

9426397939 is a deficient number, since it is larger than the sum of its proper divisors (1508213261).

9426397939 is a wasteful number, since it uses less digits than its factorization.

9426397939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70602.

The product of its digits is 19840464, while the sum is 61.

The square root of 9426397939 is about 97089.6386799333. The cubic root of 9426397939 is about 2112.4280382289.

The spelling of 9426397939 in words is "nine billion, four hundred twenty-six million, three hundred ninety-seven thousand, nine hundred thirty-nine".