7878466 has 8 divisors (see below), whose sum is σ = 12331584. Its totient is φ = 3767940.

The previous prime is 7878461. The next prime is 7878487. The reversal of 7878466 is 6648787.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 171271 = 7878466 / (7 + 8 + 7 + 8 + 4 + 6 + 6).

It is a d-powerful number, because it can be written as 7² + 8 + 7⁸ + 8⁷ + 4⁷ + 6² + 6² .

It is a pancake number, because a pancake can be divided into 7878466 parts by 3969 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (7878461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85590 + ... + 85681.

It is an arithmetic number, because the mean of its divisors is an integer number (1541448).

Almost surely, 2^7878466 is an apocalyptic number.

7878466 is a deficient number, since it is larger than the sum of its proper divisors (4453118).

7878466 is a wasteful number, since it uses less digits than its factorization.

7878466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171296.

The product of its digits is 451584, while the sum is 46.

The square root of 7878466 is about 2806.8605237881. The cubic root of 7878466 is about 198.9820442878.

The spelling of 7878466 in words is "seven million, eight hundred seventy-eight thousand, four hundred sixty-six".