79199441 has 2 divisors, whose sum is σ = 79199442. Its totient is φ = 79199440.

The previous prime is 79199431. The next prime is 79199443. The reversal of 79199441 is 14499197.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60528400 + 18671041 = 7780^2 + 4321^2 .

It is a cyclic number.

It is not a de Polignac number, because 79199441 - 2¹⁴ = 79183057 is a prime.

Together with 79199443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79199392 and 79199401.

It is not a weakly prime, because it can be changed into another prime (79199443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39599720 + 39599721.

It is an arithmetic number, because the mean of its divisors is an integer number (39599721).

Almost surely, 2^79199441 is an apocalyptic number.

It is an amenable number.

79199441 is a deficient number, since it is larger than the sum of its proper divisors (1).

79199441 is an equidigital number, since it uses as much as digits as its factorization.

79199441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 79199441 is about 8899.4067779825. The cubic root of 79199441 is about 429.4448234469. Note that the first 3 decimals are identical.

The spelling of 79199441 in words is "seventy-nine million, one hundred ninety-nine thousand, four hundred forty-one".