82093579 has 4 divisors (see below), whose sum is σ = 84002776. Its totient is φ = 80184384.

The previous prime is 82093499. The next prime is 82093591. The reversal of 82093579 is 97539028.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82093579 - 2¹³ = 82085387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1909153 = 82093579 / (8 + 2 + 0 + 9 + 3 + 5 + 7 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82093079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954534 + ... + 954619.

It is an arithmetic number, because the mean of its divisors is an integer number (21000694).

Almost surely, 2^82093579 is an apocalyptic number.

82093579 is a deficient number, since it is larger than the sum of its proper divisors (1909197).

82093579 is a wasteful number, since it uses less digits than its factorization.

82093579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909196.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 82093579 is about 9060.5507007025. The cubic root of 82093579 is about 434.6133508848.

The spelling of 82093579 in words is "eighty-two million, ninety-three thousand, five hundred seventy-nine".