7942819 has 2 divisors, whose sum is σ = 7942820. Its totient is φ = 7942818.

The previous prime is 7942799. The next prime is 7942829. The reversal of 7942819 is 9182497.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7942819 - 2⁷ = 7942691 is a prime.

It is a super-2 number, since 2×7942819² = 126176747333522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7942829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3971409 + 3971410.

It is an arithmetic number, because the mean of its divisors is an integer number (3971410).

Almost surely, 2^7942819 is an apocalyptic number.

7942819 is a deficient number, since it is larger than the sum of its proper divisors (1).

7942819 is an equidigital number, since it uses as much as digits as its factorization.

7942819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 7942819 is about 2818.3007291629. The cubic root of 7942819 is about 199.5223518359.

The spelling of 7942819 in words is "seven million, nine hundred forty-two thousand, eight hundred nineteen".