72196679 has 2 divisors, whose sum is σ = 72196680. Its totient is φ = 72196678.

The previous prime is 72196673. The next prime is 72196723. The reversal of 72196679 is 97669127.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72196679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72196673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36098339 + 36098340.

It is an arithmetic number, because the mean of its divisors is an integer number (36098340).

Almost surely, 2^72196679 is an apocalyptic number.

72196679 is a deficient number, since it is larger than the sum of its proper divisors (1).

72196679 is an equidigital number, since it uses as much as digits as its factorization.

72196679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 47.

The square root of 72196679 is about 8496.8628916795. The cubic root of 72196679 is about 416.3952246623.

The spelling of 72196679 in words is "seventy-two million, one hundred ninety-six thousand, six hundred seventy-nine".