82391441 has 12 divisors (see below), whose sum is σ = 91923216. Its totient is φ = 73776120.

The previous prime is 82391437. The next prime is 82391471. The reversal of 82391441 is 14419328.

It is a happy number.

It is not a de Polignac number, because 82391441 - 2² = 82391437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82391398 and 82391407.

It is not an unprimeable number, because it can be changed into a prime (82391411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3026 + ... + 13188.

It is an arithmetic number, because the mean of its divisors is an integer number (7660268).

Almost surely, 2^82391441 is an apocalyptic number.

It is an amenable number.

82391441 is a deficient number, since it is larger than the sum of its proper divisors (9531775).

82391441 is a wasteful number, since it uses less digits than its factorization.

82391441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10252 (or 10241 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 82391441 is about 9076.9731188321. The cubic root of 82391441 is about 435.1383556026.

The spelling of 82391441 in words is "eighty-two million, three hundred ninety-one thousand, four hundred forty-one".