79614221 has 2 divisors, whose sum is σ = 79614222. Its totient is φ = 79614220.

The previous prime is 79614203. The next prime is 79614289. The reversal of 79614221 is 12241697.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74822500 + 4791721 = 8650^2 + 2189^2 .

It is a cyclic number.

It is not a de Polignac number, because 79614221 - 2¹⁰ = 79613197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79614421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39807110 + 39807111.

It is an arithmetic number, because the mean of its divisors is an integer number (39807111).

Almost surely, 2^79614221 is an apocalyptic number.

It is an amenable number.

79614221 is a deficient number, since it is larger than the sum of its proper divisors (1).

79614221 is an equidigital number, since it uses as much as digits as its factorization.

79614221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 79614221 is about 8922.6801466824. The cubic root of 79614221 is about 430.1932086490.

The spelling of 79614221 in words is "seventy-nine million, six hundred fourteen thousand, two hundred twenty-one".