82742415 has 16 divisors (see below), whose sum is σ = 151300608. Its totient is φ = 37825056.

The previous prime is 82742411. The next prime is 82742437. The reversal of 82742415 is 51424728.

It is not a de Polignac number, because 82742415 - 2² = 82742411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82742411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393907 + ... + 394116.

It is an arithmetic number, because the mean of its divisors is an integer number (9456288).

Almost surely, 2^82742415 is an apocalyptic number.

82742415 is a deficient number, since it is larger than the sum of its proper divisors (68558193).

82742415 is a wasteful number, since it uses less digits than its factorization.

82742415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788038.

The product of its digits is 17920, while the sum is 33.

The square root of 82742415 is about 9096.2857804711. The cubic root of 82742415 is about 435.7553529585.

The spelling of 82742415 in words is "eighty-two million, seven hundred forty-two thousand, four hundred fifteen".