79218001 has 2 divisors, whose sum is σ = 79218002. Its totient is φ = 79218000.

The previous prime is 79217969. The next prime is 79218019. The reversal of 79218001 is 10081297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77422401 + 1795600 = 8799^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 79218001 - 2⁵ = 79217969 is a prime.

It is not a weakly prime, because it can be changed into another prime (79218071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39609000 + 39609001.

It is an arithmetic number, because the mean of its divisors is an integer number (39609001).

Almost surely, 2^79218001 is an apocalyptic number.

It is an amenable number.

79218001 is a deficient number, since it is larger than the sum of its proper divisors (1).

79218001 is an equidigital number, since it uses as much as digits as its factorization.

79218001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 79218001 is about 8900.4494830317. The cubic root of 79218001 is about 429.4783669219.

Adding to 79218001 its reverse (10081297), we get a palindrome (89299298).

The spelling of 79218001 in words is "seventy-nine million, two hundred eighteen thousand, one".