7934994397 has 4 divisors (see below), whose sum is σ = 8656357536. Its totient is φ = 7213631260.

The previous prime is 7934994373. The next prime is 7934994407.

7934994397 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 de Polignac number, because none of the positive numbers 2^k-7934994397 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 (7934994367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360681553 + ... + 360681574.

It is an arithmetic number, because the mean of its divisors is an integer number (2164089384).

Almost surely, 2^7934994397 is an apocalyptic number.

It is an amenable number.

7934994397 is a deficient number, since it is larger than the sum of its proper divisors (721363139).

7934994397 is a wasteful number, since it uses less digits than its factorization.

7934994397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721363138.

The product of its digits is 46294416, while the sum is 64.

The square root of 7934994397 is about 89078.5855130177. The cubic root of 7934994397 is about 1994.5681271511.

The spelling of 7934994397 in words is "seven billion, nine hundred thirty-four million, nine hundred ninety-four thousand, three hundred ninety-seven".