82470049 has 2 divisors, whose sum is σ = 82470050. Its totient is φ = 82470048.

The previous prime is 82469993. The next prime is 82470107. The reversal of 82470049 is 94007428.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81577024 + 893025 = 9032^2 + 945^2 .

It is a cyclic number.

It is not a de Polignac number, because 82470049 - 2¹⁵ = 82437281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82469996 and 82470023.

It is not a weakly prime, because it can be changed into another prime (82470149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41235024 + 41235025.

It is an arithmetic number, because the mean of its divisors is an integer number (41235025).

Almost surely, 2^82470049 is an apocalyptic number.

It is an amenable number.

82470049 is a deficient number, since it is larger than the sum of its proper divisors (1).

82470049 is an equidigital number, since it uses as much as digits as its factorization.

82470049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 82470049 is about 9081.3021643374. The cubic root of 82470049 is about 435.2766971705.

The spelling of 82470049 in words is "eighty-two million, four hundred seventy thousand, forty-nine".