79072111 has 2 divisors, whose sum is σ = 79072112. Its totient is φ = 79072110.

The previous prime is 79072093. The next prime is 79072121. The reversal of 79072111 is 11127097.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79072111 - 2⁷ = 79071983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79072111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79072121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39536055 + 39536056.

It is an arithmetic number, because the mean of its divisors is an integer number (39536056).

Almost surely, 2^79072111 is an apocalyptic number.

79072111 is a deficient number, since it is larger than the sum of its proper divisors (1).

79072111 is an equidigital number, since it uses as much as digits as its factorization.

79072111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 79072111 is about 8892.2500527144. The cubic root of 79072111 is about 429.2145586084.

The spelling of 79072111 in words is "seventy-nine million, seventy-two thousand, one hundred eleven".