82736405 has 8 divisors (see below), whose sum is σ = 103600512. Its totient is φ = 63311248.

The previous prime is 82736387. The next prime is 82736411. The reversal of 82736405 is 50463728.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82736405 - 2⁸ = 82736149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359609 + ... + 359838.

It is an arithmetic number, because the mean of its divisors is an integer number (12950064).

Almost surely, 2^82736405 is an apocalyptic number.

It is an amenable number.

82736405 is a deficient number, since it is larger than the sum of its proper divisors (20864107).

82736405 is a wasteful number, since it uses less digits than its factorization.

82736405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719475.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 82736405 is about 9095.9554198556. The cubic root of 82736405 is about 435.7448023315.

The spelling of 82736405 in words is "eighty-two million, seven hundred thirty-six thousand, four hundred five".