79000213 has 2 divisors, whose sum is σ = 79000214. Its totient is φ = 79000212.

The previous prime is 79000199. The next prime is 79000231. The reversal of 79000213 is 31200097.

Together with next prime (79000231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67864644 + 11135569 = 8238^2 + 3337^2 .

It is a cyclic number.

It is not a de Polignac number, because 79000213 - 2²¹ = 76903061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79000253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39500106 + 39500107.

It is an arithmetic number, because the mean of its divisors is an integer number (39500107).

Almost surely, 2^79000213 is an apocalyptic number.

It is an amenable number.

79000213 is a deficient number, since it is larger than the sum of its proper divisors (1).

79000213 is an equidigital number, since it uses as much as digits as its factorization.

79000213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 79000213 is about 8888.2063994937. The cubic root of 79000213 is about 429.0844283348.

The spelling of 79000213 in words is "seventy-nine million, two hundred thirteen", and thus it is an aban number.