79430213 has 2 divisors, whose sum is σ = 79430214. Its totient is φ = 79430212.

The previous prime is 79430209. The next prime is 79430227. The reversal of 79430213 is 31203497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72471169 + 6959044 = 8513^2 + 2638^2 .

It is a cyclic number.

It is not a de Polignac number, because 79430213 - 2² = 79430209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79430233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39715106 + 39715107.

It is an arithmetic number, because the mean of its divisors is an integer number (39715107).

Almost surely, 2^79430213 is an apocalyptic number.

It is an amenable number.

79430213 is a deficient number, since it is larger than the sum of its proper divisors (1).

79430213 is an equidigital number, since it uses as much as digits as its factorization.

79430213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 79430213 is about 8912.3629302223. The cubic root of 79430213 is about 429.8615256295.

The spelling of 79430213 in words is "seventy-nine million, four hundred thirty thousand, two hundred thirteen".