82875381 has 4 divisors (see below), whose sum is σ = 110500512. Its totient is φ = 55250252.

The previous prime is 82875379. The next prime is 82875383. The reversal of 82875381 is 18357828.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (82875379) and next prime (82875383).

It is a cyclic number.

It is not a de Polignac number, because 82875381 - 2¹ = 82875379 is a prime.

It is a super-2 number, since 2×82875381² = 13736657551790322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82875383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13812561 + ... + 13812566.

It is an arithmetic number, because the mean of its divisors is an integer number (27625128).

Almost surely, 2^82875381 is an apocalyptic number.

It is an amenable number.

82875381 is a deficient number, since it is larger than the sum of its proper divisors (27625131).

82875381 is a wasteful number, since it uses less digits than its factorization.

82875381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27625130.

The product of its digits is 107520, while the sum is 42.

The square root of 82875381 is about 9103.5916538474. The cubic root of 82875381 is about 435.9886457919.

The spelling of 82875381 in words is "eighty-two million, eight hundred seventy-five thousand, three hundred eighty-one".