7872806 has 8 divisors (see below), whose sum is σ = 11837784. Its totient is φ = 3926880.

The previous prime is 7872803. The next prime is 7872817. The reversal of 7872806 is 6082787.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7872806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3680 + ... + 5411.

It is an arithmetic number, because the mean of its divisors is an integer number (1479723).

Almost surely, 2^7872806 is an apocalyptic number.

7872806 is a deficient number, since it is larger than the sum of its proper divisors (3964978).

7872806 is a wasteful number, since it uses less digits than its factorization.

7872806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9526.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 7872806 is about 2805.8520987393. The cubic root of 7872806 is about 198.9343823792.

The spelling of 7872806 in words is "seven million, eight hundred seventy-two thousand, eight hundred six".