79894253 has 2 divisors, whose sum is σ = 79894254. Its totient is φ = 79894252.

The previous prime is 79894231. The next prime is 79894261. The reversal of 79894253 is 35249897.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78818884 + 1075369 = 8878^2 + 1037^2 .

It is a cyclic number.

It is not a de Polignac number, because 79894253 - 2²⁶ = 12785389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79894198 and 79894207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79894453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39947126 + 39947127.

It is an arithmetic number, because the mean of its divisors is an integer number (39947127).

Almost surely, 2^79894253 is an apocalyptic number.

It is an amenable number.

79894253 is a deficient number, since it is larger than the sum of its proper divisors (1).

79894253 is an equidigital number, since it uses as much as digits as its factorization.

79894253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 79894253 is about 8938.3585182068. The cubic root of 79894253 is about 430.6970001218.

The spelling of 79894253 in words is "seventy-nine million, eight hundred ninety-four thousand, two hundred fifty-three".