82642015 has 8 divisors (see below), whose sum is σ = 105004080. Its totient is φ = 62224512.

The previous prime is 82642009. The next prime is 82642031. The reversal of 82642015 is 51024628.

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 82642015 - 2⁵ = 82641983 is a prime.

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, 486045 + ... + 486214.

It is an arithmetic number, because the mean of its divisors is an integer number (13125510).

Almost surely, 2^82642015 is an apocalyptic number.

82642015 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

82642015 is a deficient number, since it is larger than the sum of its proper divisors (22362065).

82642015 is a wasteful number, since it uses less digits than its factorization.

82642015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972281.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 82642015 is about 9090.7653693185. The cubic root of 82642015 is about 435.5790324874.

The spelling of 82642015 in words is "eighty-two million, six hundred forty-two thousand, fifteen".