7842863 has 8 divisors (see below), whose sum is σ = 9002400. Its totient is φ = 6693120.

The previous prime is 7842859. The next prime is 7842871. The reversal of 7842863 is 3682487.

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

It is not a de Polignac number, because 7842863 - 2² = 7842859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7842803) 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, 638 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (1125300).

Almost surely, 2^7842863 is an apocalyptic number.

7842863 is a deficient number, since it is larger than the sum of its proper divisors (1159537).

7842863 is a wasteful number, since it uses less digits than its factorization.

7842863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897.

The product of its digits is 64512, while the sum is 38.

The square root of 7842863 is about 2800.5112033341. The cubic root of 7842863 is about 198.6818565752.

It can be divided in two parts, 7 and 842863, that multiplied together give a square (5900041 = 2429²).

The spelling of 7842863 in words is "seven million, eight hundred forty-two thousand, eight hundred sixty-three".