79416289 has 2 divisors, whose sum is σ = 79416290. Its totient is φ = 79416288.

The previous prime is 79416283. The next prime is 79416307. The reversal of 79416289 is 98261497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77299264 + 2117025 = 8792^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 79416289 - 2¹³ = 79408097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79416283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39708144 + 39708145.

It is an arithmetic number, because the mean of its divisors is an integer number (39708145).

Almost surely, 2^79416289 is an apocalyptic number.

It is an amenable number.

79416289 is a deficient number, since it is larger than the sum of its proper divisors (1).

79416289 is an equidigital number, since it uses as much as digits as its factorization.

79416289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 79416289 is about 8911.5817339011. The cubic root of 79416289 is about 429.8364061297.

The spelling of 79416289 in words is "seventy-nine million, four hundred sixteen thousand, two hundred eighty-nine".