79666583 has 2 divisors, whose sum is σ = 79666584. Its totient is φ = 79666582.

The previous prime is 79666577. The next prime is 79666589. The reversal of 79666583 is 38566697.

It is a balanced prime because it is at equal distance from previous prime (79666577) and next prime (79666589).

It is a cyclic number.

It is not a de Polignac number, because 79666583 - 2¹⁰ = 79665559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79666589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39833291 + 39833292.

It is an arithmetic number, because the mean of its divisors is an integer number (39833292).

Almost surely, 2^79666583 is an apocalyptic number.

79666583 is a deficient number, since it is larger than the sum of its proper divisors (1).

79666583 is an equidigital number, since it uses as much as digits as its factorization.

79666583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 50.

The square root of 79666583 is about 8925.6138724460. The cubic root of 79666583 is about 430.2875001794.

The spelling of 79666583 in words is "seventy-nine million, six hundred sixty-six thousand, five hundred eighty-three".