7678425 has 24 divisors (see below), whose sum is σ = 13042816. Its totient is φ = 3983040.

The previous prime is 7678409. The next prime is 7678453. The reversal of 7678425 is 5248767.

It is not a de Polignac number, because 7678425 - 2⁴ = 7678409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1392 + ... + 4158.

Almost surely, 2^7678425 is an apocalyptic number.

7678425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7678425 is a deficient number, since it is larger than the sum of its proper divisors (5364391).

7678425 is a wasteful number, since it uses less digits than its factorization.

7678425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817 (or 2812 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 7678425 is about 2770.9971129541. The cubic root of 7678425 is about 197.2834779271.

The spelling of 7678425 in words is "seven million, six hundred seventy-eight thousand, four hundred twenty-five".