83022381 has 64 divisors (see below), whose sum is σ = 142464000. Its totient is φ = 47355840.

The previous prime is 83022377. The next prime is 83022391. The reversal of 83022381 is 18322038.

It is not a de Polignac number, because 83022381 - 2² = 83022377 is a prime.

It is a super-2 number, since 2×83022381² = 13785431493818322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83022391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 393366 + ... + 393576.

It is an arithmetic number, because the mean of its divisors is an integer number (2226000).

Almost surely, 2^83022381 is an apocalyptic number.

It is an amenable number.

83022381 is a deficient number, since it is larger than the sum of its proper divisors (59441619).

83022381 is a wasteful number, since it uses less digits than its factorization.

83022381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 83022381 is about 9111.6618133028. The cubic root of 83022381 is about 436.2462714547.

The spelling of 83022381 in words is "eighty-three million, twenty-two thousand, three hundred eighty-one".