82416949 has 4 divisors (see below), whose sum is σ = 82560364. Its totient is φ = 82273536.

The previous prime is 82416911. The next prime is 82416967. The reversal of 82416949 is 94961428.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59444100 + 22972849 = 7710^2 + 4793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82416949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82416979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70842 + ... + 71995.

It is an arithmetic number, because the mean of its divisors is an integer number (20640091).

Almost surely, 2^82416949 is an apocalyptic number.

It is an amenable number.

82416949 is a deficient number, since it is larger than the sum of its proper divisors (143415).

82416949 is a wasteful number, since it uses less digits than its factorization.

82416949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143414.

The product of its digits is 124416, while the sum is 43.

The square root of 82416949 is about 9078.3781040448. The cubic root of 82416949 is about 435.1832565607.

The spelling of 82416949 in words is "eighty-two million, four hundred sixteen thousand, nine hundred forty-nine".