82758993 has 4 divisors (see below), whose sum is σ = 110345328. Its totient is φ = 55172660.

The previous prime is 82758989. The next prime is 82759049. The reversal of 82758993 is 39985728.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82758993 - 2² = 82758989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82758943) 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, 13793163 + ... + 13793168.

It is an arithmetic number, because the mean of its divisors is an integer number (27586332).

Almost surely, 2^82758993 is an apocalyptic number.

It is an amenable number.

82758993 is a deficient number, since it is larger than the sum of its proper divisors (27586335).

82758993 is a wasteful number, since it uses less digits than its factorization.

82758993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27586334.

The product of its digits is 1088640, while the sum is 51.

The square root of 82758993 is about 9097.1969858853. The cubic root of 82758993 is about 435.7844531882.

The spelling of 82758993 in words is "eighty-two million, seven hundred fifty-eight thousand, nine hundred ninety-three".