7878469 has 4 divisors (see below), whose sum is σ = 8046144. Its totient is φ = 7710796.

The previous prime is 7878461. The next prime is 7878487. The reversal of 7878469 is 9648787.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7878469 - 2³ = 7878461 is a prime.

It is a super-2 number, since 2×7878469² = 124140547567922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7 + 8 + 7⁸ + 8⁷ + 4⁷ + 6² + 9² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878461) 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, 83767 + ... + 83860.

It is an arithmetic number, because the mean of its divisors is an integer number (2011536).

Almost surely, 2^7878469 is an apocalyptic number.

It is an amenable number.

7878469 is a deficient number, since it is larger than the sum of its proper divisors (167675).

7878469 is a wasteful number, since it uses less digits than its factorization.

7878469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167674.

The product of its digits is 677376, while the sum is 49.

The square root of 7878469 is about 2806.8610581929. The cubic root of 7878469 is about 198.9820695443.

The spelling of 7878469 in words is "seven million, eight hundred seventy-eight thousand, four hundred sixty-nine".