82381396 has 6 divisors (see below), whose sum is σ = 144167450. Its totient is φ = 41190696.

The previous prime is 82381393. The next prime is 82381399. The reversal of 82381396 is 69318328.

It is an interprime number because it is at equal distance from previous prime (82381393) and next prime (82381399).

It can be written as a sum of positive squares in only one way, i.e., 71064900 + 11316496 = 8430^2 + 3364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82381393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10297671 + ... + 10297678.

Almost surely, 2^82381396 is an apocalyptic number.

It is an amenable number.

82381396 is a deficient number, since it is larger than the sum of its proper divisors (61786054).

82381396 is a wasteful number, since it uses less digits than its factorization.

82381396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20595353 (or 20595351 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 82381396 is about 9076.4197787454. The cubic root of 82381396 is about 435.1206711507.

The spelling of 82381396 in words is "eighty-two million, three hundred eighty-one thousand, three hundred ninety-six".