82742727 has 8 divisors (see below), whose sum is σ = 110798064. Its totient is φ = 54924608.

The previous prime is 82742717. The next prime is 82742729. The reversal of 82742727 is 72724728.

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 82742727 - 2¹⁹ = 82218439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82742729) 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, 58488 + ... + 59885.

It is an arithmetic number, because the mean of its divisors is an integer number (13849758).

Almost surely, 2^82742727 is an apocalyptic number.

82742727 is a deficient number, since it is larger than the sum of its proper divisors (28055337).

82742727 is a wasteful number, since it uses less digits than its factorization.

82742727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118609.

The product of its digits is 87808, while the sum is 39.

The square root of 82742727 is about 9096.3029303119. The cubic root of 82742727 is about 435.7559006643.

The spelling of 82742727 in words is "eighty-two million, seven hundred forty-two thousand, seven hundred twenty-seven".