82110715 has 4 divisors (see below), whose sum is σ = 98532864. Its totient is φ = 65688568.

The previous prime is 82110703. The next prime is 82110751. The reversal of 82110715 is 51701128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82110715 - 2¹¹ = 82108667 is a prime.

It is a super-2 number, since 2×82110715² = 13484339035622450, which contains 22 as substring.

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 82110715.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8211067 + ... + 8211076.

It is an arithmetic number, because the mean of its divisors is an integer number (24633216).

Almost surely, 2^82110715 is an apocalyptic number.

82110715 is a deficient number, since it is larger than the sum of its proper divisors (16422149).

82110715 is a wasteful number, since it uses less digits than its factorization.

82110715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16422148.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 82110715 is about 9061.4962892450. The cubic root of 82110715 is about 434.6435888008.

The spelling of 82110715 in words is "eighty-two million, one hundred ten thousand, seven hundred fifteen".