82717470 has 64 divisors (see below), whose sum is σ = 240641280. Its totient is φ = 20052000.

The previous prime is 82717451. The next prime is 82717477. The reversal of 82717470 is 7471728.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 10956 + ... + 16895.

It is an arithmetic number, because the mean of its divisors is an integer number (3760020).

Almost surely, 2^82717470 is an apocalyptic number.

82717470 is an abundant number, since it is smaller than the sum of its proper divisors (157923810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82717470 is a wasteful number, since it uses less digits than its factorization.

82717470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27878 (or 27872 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 82717470 is about 9094.9145130672. The cubic root of 82717470 is about 435.7115583710.

The spelling of 82717470 in words is "eighty-two million, seven hundred seventeen thousand, four hundred seventy".