79908853 has 2 divisors, whose sum is σ = 79908854. Its totient is φ = 79908852.

The previous prime is 79908839. The next prime is 79908859. The reversal of 79908853 is 35880997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79174404 + 734449 = 8898^2 + 857^2 .

It is an emirp because it is prime and its reverse (35880997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79908853 - 2¹³ = 79900661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79908797 and 79908806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79908859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39954426 + 39954427.

It is an arithmetic number, because the mean of its divisors is an integer number (39954427).

Almost surely, 2^79908853 is an apocalyptic number.

It is an amenable number.

79908853 is a deficient number, since it is larger than the sum of its proper divisors (1).

79908853 is an equidigital number, since it uses as much as digits as its factorization.

79908853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 79908853 is about 8939.1751856645. The cubic root of 79908853 is about 430.7232339370.

The spelling of 79908853 in words is "seventy-nine million, nine hundred eight thousand, eight hundred fifty-three".