82374947 has 2 divisors, whose sum is σ = 82374948. Its totient is φ = 82374946.

The previous prime is 82374931. The next prime is 82374961. The reversal of 82374947 is 74947328.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82374947 - 2⁴ = 82374931 is a prime.

It is equal to p_4799933 and since 82374947 and 4799933 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 82374898 and 82374907.

It is not a weakly prime, because it can be changed into another prime (82374997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41187473 + 41187474.

It is an arithmetic number, because the mean of its divisors is an integer number (41187474).

Almost surely, 2^82374947 is an apocalyptic number.

82374947 is a deficient number, since it is larger than the sum of its proper divisors (1).

82374947 is an equidigital number, since it uses as much as digits as its factorization.

82374947 is an odious number, because the sum of its binary digits is odd.

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

The square root of 82374947 is about 9076.0645105684. The cubic root of 82374947 is about 435.1093167811.

The spelling of 82374947 in words is "eighty-two million, three hundred seventy-four thousand, nine hundred forty-seven".