7963919 has 2 divisors, whose sum is σ = 7963920. Its totient is φ = 7963918.

The previous prime is 7963909. The next prime is 7963937. The reversal of 7963919 is 9193697.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7963919 - 2⁸ = 7963663 is a prime.

It is a super-2 number, since 2×7963919² = 126848011677122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7963919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7963909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3981959 + 3981960.

It is an arithmetic number, because the mean of its divisors is an integer number (3981960).

Almost surely, 2^7963919 is an apocalyptic number.

7963919 is a deficient number, since it is larger than the sum of its proper divisors (1).

7963919 is an equidigital number, since it uses as much as digits as its factorization.

7963919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91854, while the sum is 44.

The square root of 7963919 is about 2822.0416368296. The cubic root of 7963919 is about 199.6988718367.

The spelling of 7963919 in words is "seven million, nine hundred sixty-three thousand, nine hundred nineteen".