82717394 has 4 divisors (see below), whose sum is σ = 124076094. Its totient is φ = 41358696.

The previous prime is 82717379. The next prime is 82717399. The reversal of 82717394 is 49371728.

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

It can be written as a sum of positive squares in only one way, i.e., 82174225 + 543169 = 9065^2 + 737^2 .

It is not an unprimeable number, because it can be changed into a prime (82717399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20679347 + ... + 20679350.

Almost surely, 2^82717394 is an apocalyptic number.

82717394 is a deficient number, since it is larger than the sum of its proper divisors (41358700).

82717394 is a wasteful number, since it uses less digits than its factorization.

82717394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41358699.

The product of its digits is 84672, while the sum is 41.

The square root of 82717394 is about 9094.9103349071. The cubic root of 82717394 is about 435.7114249284.

The spelling of 82717394 in words is "eighty-two million, seven hundred seventeen thousand, three hundred ninety-four".