7478899 has 4 divisors (see below), whose sum is σ = 7605720. Its totient is φ = 7352080.

The previous prime is 7478893. The next prime is 7478941. The reversal of 7478899 is 9988747.

It is a happy number.

7478899 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7478899 - 2⁷ = 7478771 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7478893) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 63322 + ... + 63439.

It is an arithmetic number, because the mean of its divisors is an integer number (1901430).

Almost surely, 2^7478899 is an apocalyptic number.

7478899 is a deficient number, since it is larger than the sum of its proper divisors (126821).

7478899 is a wasteful number, since it uses less digits than its factorization.

7478899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126820.

The product of its digits is 1016064, while the sum is 52.

The square root of 7478899 is about 2734.7575760934. The cubic root of 7478899 is about 195.5596371369.

The spelling of 7478899 in words is "seven million, four hundred seventy-eight thousand, eight hundred ninety-nine".