82745415 has 16 divisors (see below), whose sum is σ = 147103200. Its totient is φ = 44130816.

The previous prime is 82745401. The next prime is 82745423. The reversal of 82745415 is 51454728.

It is not a de Polignac number, because 82745415 - 2¹⁰ = 82744391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82745415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306330 + ... + 306599.

It is an arithmetic number, because the mean of its divisors is an integer number (9193950).

Almost surely, 2^82745415 is an apocalyptic number.

82745415 is a deficient number, since it is larger than the sum of its proper divisors (64357785).

82745415 is a wasteful number, since it uses less digits than its factorization.

82745415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612943 (or 612937 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 82745415 is about 9096.4506814471. The cubic root of 82745415 is about 435.7606193033.

It can be divided in two parts, 8274 and 5415, that added together give a square (13689 = 117²).

The spelling of 82745415 in words is "eighty-two million, seven hundred forty-five thousand, four hundred fifteen".