82647293 has 4 divisors (see below), whose sum is σ = 82665888. Its totient is φ = 82628700.

The previous prime is 82647277. The next prime is 82647311. The reversal of 82647293 is 39274628.

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 82647293 - 2⁴ = 82647277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82647293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82647203) 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, 1730 + ... + 12972.

It is an arithmetic number, because the mean of its divisors is an integer number (20666472).

Almost surely, 2^82647293 is an apocalyptic number.

It is an amenable number.

82647293 is a deficient number, since it is larger than the sum of its proper divisors (18595).

82647293 is a wasteful number, since it uses less digits than its factorization.

82647293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18594.

The product of its digits is 145152, while the sum is 41.

The square root of 82647293 is about 9091.0556592730. The cubic root of 82647293 is about 435.5883051606.

The spelling of 82647293 in words is "eighty-two million, six hundred forty-seven thousand, two hundred ninety-three".