7806345 has 8 divisors (see below), whose sum is σ = 12490176. Its totient is φ = 4163376.

The previous prime is 7806343. The next prime is 7806347. The reversal of 7806345 is 5436087.

It is an interprime number because it is at equal distance from previous prime (7806343) and next prime (7806347).

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

It is not a de Polignac number, because 7806345 - 2¹ = 7806343 is a prime.

7806345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7806341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260197 + ... + 260226.

It is an arithmetic number, because the mean of its divisors is an integer number (1561272).

Almost surely, 2^7806345 is an apocalyptic number.

It is an amenable number.

7806345 is a deficient number, since it is larger than the sum of its proper divisors (4683831).

7806345 is a wasteful number, since it uses less digits than its factorization.

7806345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520431.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 7806345 is about 2793.9837150563. The cubic root of 7806345 is about 198.3730087203.

The spelling of 7806345 in words is "seven million, eight hundred six thousand, three hundred forty-five".