82590069 has 8 divisors (see below), whose sum is σ = 110205792. Its totient is φ = 55017200.

The previous prime is 82590037. The next prime is 82590077. The reversal of 82590069 is 96009528.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82590069 - 2⁵ = 82590037 is a prime.

It is a super-2 number, since 2×82590069² = 13642238994849522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82590269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5907 + ... + 14144.

It is an arithmetic number, because the mean of its divisors is an integer number (13775724).

Almost surely, 2^82590069 is an apocalyptic number.

It is an amenable number.

82590069 is a deficient number, since it is larger than the sum of its proper divisors (27615723).

82590069 is a wasteful number, since it uses less digits than its factorization.

82590069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21427.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 82590069 is about 9087.9078450433. The cubic root of 82590069 is about 435.4877499000.

The spelling of 82590069 in words is "eighty-two million, five hundred ninety thousand, sixty-nine".