7878963 has 8 divisors (see below), whose sum is σ = 10649488. Its totient is φ = 5180544.

The previous prime is 7878961. The next prime is 7878967. The reversal of 7878963 is 3698787.

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

It is not a de Polignac number, because 7878963 - 2¹ = 7878961 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7878961) 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, 17770 + ... + 18207.

It is an arithmetic number, because the mean of its divisors is an integer number (1331186).

Almost surely, 2^7878963 is an apocalyptic number.

7878963 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

7878963 is a deficient number, since it is larger than the sum of its proper divisors (2770525).

7878963 is a wasteful number, since it uses less digits than its factorization.

7878963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36053.

The product of its digits is 508032, while the sum is 48.

The square root of 7878963 is about 2806.9490554693. The cubic root of 7878963 is about 198.9862283509.

The spelling of 7878963 in words is "seven million, eight hundred seventy-eight thousand, nine hundred sixty-three".