82364381 has 8 divisors (see below), whose sum is σ = 90257664. Its totient is φ = 74538720.

The previous prime is 82364377. The next prime is 82364383. The reversal of 82364381 is 18346328.

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 82364381 - 2² = 82364377 is a prime.

It is a super-2 number, since 2×82364381² = 13567782515026322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82364383) 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, 14336 + ... + 19241.

It is an arithmetic number, because the mean of its divisors is an integer number (11282208).

Almost surely, 2^82364381 is an apocalyptic number.

It is an amenable number.

82364381 is a deficient number, since it is larger than the sum of its proper divisors (7893283).

82364381 is a wasteful number, since it uses less digits than its factorization.

82364381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33811.

The product of its digits is 27648, while the sum is 35.

The square root of 82364381 is about 9075.4824114203. The cubic root of 82364381 is about 435.0907125745.

It can be divided in two parts, 82 and 364381, that added together give a palindrome (364463).

The spelling of 82364381 in words is "eighty-two million, three hundred sixty-four thousand, three hundred eighty-one".