82937447 has 2 divisors, whose sum is σ = 82937448. Its totient is φ = 82937446.

The previous prime is 82937389. The next prime is 82937453. The reversal of 82937447 is 74473928.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82937447 - 2⁸ = 82937191 is a prime.

It is a super-2 number, since 2×82937447² = 13757240229755618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82937398 and 82937407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82937467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41468723 + 41468724.

It is an arithmetic number, because the mean of its divisors is an integer number (41468724).

Almost surely, 2^82937447 is an apocalyptic number.

82937447 is a deficient number, since it is larger than the sum of its proper divisors (1).

82937447 is an equidigital number, since it uses as much as digits as its factorization.

82937447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 44.

The square root of 82937447 is about 9106.9998901944. Note that the first 3 decimals coincide. The cubic root of 82937447 is about 436.0974570320.

The spelling of 82937447 in words is "eighty-two million, nine hundred thirty-seven thousand, four hundred forty-seven".