82083257 has 4 divisors (see below), whose sum is σ = 84731136. Its totient is φ = 79435380.

The previous prime is 82083233. The next prime is 82083269. The reversal of 82083257 is 75238028.

It is a happy number.

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 82083257 - 2⁶ = 82083193 is a prime.

It is a super-2 number, since 2×82083257² = 13475322159456098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82083217) 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, 1323893 + ... + 1323954.

It is an arithmetic number, because the mean of its divisors is an integer number (21182784).

Almost surely, 2^82083257 is an apocalyptic number.

It is an amenable number.

82083257 is a deficient number, since it is larger than the sum of its proper divisors (2647879).

82083257 is a wasteful number, since it uses less digits than its factorization.

82083257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647878.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 82083257 is about 9059.9810706204. The cubic root of 82083257 is about 434.5951348152.

The spelling of 82083257 in words is "eighty-two million, eighty-three thousand, two hundred fifty-seven".