82472987 has 2 divisors, whose sum is σ = 82472988. Its totient is φ = 82472986.

The previous prime is 82472981. The next prime is 82473031. The reversal of 82472987 is 78927428.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82472987 - 2¹² = 82468891 is a prime.

It is not a weakly prime, because it can be changed into another prime (82472981) 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, 41236493 + 41236494.

It is an arithmetic number, because the mean of its divisors is an integer number (41236494).

Almost surely, 2^82472987 is an apocalyptic number.

82472987 is a deficient number, since it is larger than the sum of its proper divisors (1).

82472987 is an equidigital number, since it uses as much as digits as its factorization.

82472987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 82472987 is about 9081.4639238396. The cubic root of 82472987 is about 435.2818660279.

The spelling of 82472987 in words is "eighty-two million, four hundred seventy-two thousand, nine hundred eighty-seven".