82126727 has 4 divisors (see below), whose sum is σ = 82375176. Its totient is φ = 81878280.

The previous prime is 82126697. The next prime is 82126729. The reversal of 82126727 is 72762128.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82126727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82126729) 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, 123728 + ... + 124389.

It is an arithmetic number, because the mean of its divisors is an integer number (20593794).

Almost surely, 2^82126727 is an apocalyptic number.

82126727 is a deficient number, since it is larger than the sum of its proper divisors (248449).

82126727 is a wasteful number, since it uses less digits than its factorization.

82126727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248448.

The product of its digits is 18816, while the sum is 35.

The square root of 82126727 is about 9062.3797647196. The cubic root of 82126727 is about 434.6718395223.

The spelling of 82126727 in words is "eighty-two million, one hundred twenty-six thousand, seven hundred twenty-seven".