82817013 has 8 divisors (see below), whose sum is σ = 116918208. Its totient is φ = 51963584.

The previous prime is 82816957. The next prime is 82817017. The reversal of 82817013 is 31071828.

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 82817013 - 2⁶ = 82816949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82817017) 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, 811881 + ... + 811982.

It is an arithmetic number, because the mean of its divisors is an integer number (14614776).

Almost surely, 2^82817013 is an apocalyptic number.

It is an amenable number.

82817013 is a deficient number, since it is larger than the sum of its proper divisors (34101195).

82817013 is a wasteful number, since it uses less digits than its factorization.

82817013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623883.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 82817013 is about 9100.3853215125. The cubic root of 82817013 is about 435.8862681357.

The spelling of 82817013 in words is "eighty-two million, eight hundred seventeen thousand, thirteen".