7940796431 has 2 divisors, whose sum is σ = 7940796432. Its totient is φ = 7940796430.

The previous prime is 7940796421. The next prime is 7940796449. The reversal of 7940796431 is 1346970497.

It is a happy number.

7940796431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1346970497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7940796431 - 2¹⁰ = 7940795407 is a prime.

It is a super-2 number, since 2×7940796431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7940796431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7940796421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3970398215 + 3970398216.

It is an arithmetic number, because the mean of its divisors is an integer number (3970398216).

Almost surely, 2^7940796431 is an apocalyptic number.

7940796431 is a deficient number, since it is larger than the sum of its proper divisors (1).

7940796431 is an equidigital number, since it uses as much as digits as its factorization.

7940796431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 7940796431 is about 89111.1465025560. The cubic root of 7940796431 is about 1995.0541486089.

The spelling of 7940796431 in words is "seven billion, nine hundred forty million, seven hundred ninety-six thousand, four hundred thirty-one".