7936996391 has 2 divisors, whose sum is σ = 7936996392. Its totient is φ = 7936996390.

The previous prime is 7936996387. The next prime is 7936996409. The reversal of 7936996391 is 1936996397.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7936996391 - 2² = 7936996387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7936996381) 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 as a sum of consecutive naturals, namely, 3968498195 + 3968498196.

It is an arithmetic number, because the mean of its divisors is an integer number (3968498196).

Almost surely, 2^7936996391 is an apocalyptic number.

7936996391 is a deficient number, since it is larger than the sum of its proper divisors (1).

7936996391 is an equidigital number, since it uses as much as digits as its factorization.

7936996391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14880348, while the sum is 62.

The square root of 7936996391 is about 89089.8220393329. The cubic root of 7936996391 is about 1994.7358557992.

The spelling of 7936996391 in words is "seven billion, nine hundred thirty-six million, nine hundred ninety-six thousand, three hundred ninety-one".