82415743 has 4 divisors (see below), whose sum is σ = 83812680. Its totient is φ = 81018808.

The previous prime is 82415659. The next prime is 82415747. The reversal of 82415743 is 34751428.

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

It is a cyclic number.

It is not a de Polignac number, because 82415743 - 2²⁵ = 48861311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82415699 and 82415708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82415747) 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, 698380 + ... + 698497.

It is an arithmetic number, because the mean of its divisors is an integer number (20953170).

Almost surely, 2^82415743 is an apocalyptic number.

82415743 is a deficient number, since it is larger than the sum of its proper divisors (1396937).

82415743 is a wasteful number, since it uses less digits than its factorization.

82415743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396936.

The product of its digits is 26880, while the sum is 34.

The square root of 82415743 is about 9078.3116822458. The cubic root of 82415743 is about 435.1811338841.

The spelling of 82415743 in words is "eighty-two million, four hundred fifteen thousand, seven hundred forty-three".