82717427 has 8 divisors (see below), whose sum is σ = 94320576. Its totient is φ = 71862912.

The previous prime is 82717409. The next prime is 82717441. The reversal of 82717427 is 72471728.

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 82717427 - 2⁶ = 82717363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82717477) 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, 186923 + ... + 187364.

It is an arithmetic number, because the mean of its divisors is an integer number (11790072).

Almost surely, 2^82717427 is an apocalyptic number.

82717427 is a deficient number, since it is larger than the sum of its proper divisors (11603149).

82717427 is a wasteful number, since it uses less digits than its factorization.

82717427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374317.

The product of its digits is 43904, while the sum is 38.

The square root of 82717427 is about 9094.9121491084. The cubic root of 82717427 is about 435.7114828706.

The spelling of 82717427 in words is "eighty-two million, seven hundred seventeen thousand, four hundred twenty-seven".