79289653 has 2 divisors, whose sum is σ = 79289654. Its totient is φ = 79289652.

The previous prime is 79289629. The next prime is 79289669. The reversal of 79289653 is 35698297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79263409 + 26244 = 8903^2 + 162^2 .

It is an emirp because it is prime and its reverse (35698297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79289653 - 2⁵ = 79289621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79289597 and 79289606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79280653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39644826 + 39644827.

It is an arithmetic number, because the mean of its divisors is an integer number (39644827).

Almost surely, 2^79289653 is an apocalyptic number.

It is an amenable number.

79289653 is a deficient number, since it is larger than the sum of its proper divisors (1).

79289653 is an equidigital number, since it uses as much as digits as its factorization.

79289653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 49.

The square root of 79289653 is about 8904.4737632271. The cubic root of 79289653 is about 429.6078143970.

The spelling of 79289653 in words is "seventy-nine million, two hundred eighty-nine thousand, six hundred fifty-three".