82660739 has 8 divisors (see below), whose sum is σ = 94698240. Its totient is φ = 70680456.

The previous prime is 82660717. The next prime is 82660763. The reversal of 82660739 is 93706628.

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

It is a de Polignac number, because none of the positive numbers 2^k-82660739 is a prime.

It is a super-2 number, since 2×82660739² = 13665595544052242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82660696 and 82660705.

It is not an unprimeable number, because it can be changed into a prime (82660769) 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, 11159 + ... + 17024.

It is an arithmetic number, because the mean of its divisors is an integer number (11837280).

Almost surely, 2^82660739 is an apocalyptic number.

82660739 is a deficient number, since it is larger than the sum of its proper divisors (12037501).

82660739 is a wasteful number, since it uses less digits than its factorization.

82660739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28609.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 82660739 is about 9091.7951472743. The cubic root of 82660739 is about 435.6119260300.

The spelling of 82660739 in words is "eighty-two million, six hundred sixty thousand, seven hundred thirty-nine".