82009345 has 8 divisors (see below), whose sum is σ = 107357760. Its totient is φ = 59643120.

The previous prime is 82009337. The next prime is 82009349. The reversal of 82009345 is 54390028.

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

It is not a de Polignac number, because 82009345 - 2³ = 82009337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82009349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745485 + ... + 745594.

It is an arithmetic number, because the mean of its divisors is an integer number (13419720).

Almost surely, 2^82009345 is an apocalyptic number.

It is an amenable number.

82009345 is a deficient number, since it is larger than the sum of its proper divisors (25348415).

82009345 is a wasteful number, since it uses less digits than its factorization.

82009345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491095.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 82009345 is about 9055.9011147428. The cubic root of 82009345 is about 434.4646516815.

The spelling of 82009345 in words is "eighty-two million, nine thousand, three hundred forty-five".