79219841 has 2 divisors, whose sum is σ = 79219842. Its totient is φ = 79219840.

The previous prime is 79219837. The next prime is 79219871. The reversal of 79219841 is 14891297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47059600 + 32160241 = 6860^2 + 5671^2 .

It is a cyclic number.

It is not a de Polignac number, because 79219841 - 2² = 79219837 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79219871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39609920 + 39609921.

It is an arithmetic number, because the mean of its divisors is an integer number (39609921).

Almost surely, 2^79219841 is an apocalyptic number.

It is an amenable number.

79219841 is a deficient number, since it is larger than the sum of its proper divisors (1).

79219841 is an equidigital number, since it uses as much as digits as its factorization.

79219841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 41.

The square root of 79219841 is about 8900.5528479977. The cubic root of 79219841 is about 429.4816920671.

The spelling of 79219841 in words is "seventy-nine million, two hundred nineteen thousand, eight hundred forty-one".