5478945 has 16 divisors (see below), whose sum is σ = 9148032. Its totient is φ = 2794880.

The previous prime is 5478937. The next prime is 5478989. The reversal of 5478945 is 5498745.

It is not a de Polignac number, because 5478945 - 2³ = 5478937 is a prime.

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

5478945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5478897 and 5478906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7596 + ... + 8285.

It is an arithmetic number, because the mean of its divisors is an integer number (571752).

Almost surely, 2^5478945 is an apocalyptic number.

It is an amenable number.

5478945 is a deficient number, since it is larger than the sum of its proper divisors (3669087).

5478945 is a wasteful number, since it uses less digits than its factorization.

5478945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15912.

The product of its digits is 201600, while the sum is 42.

The square root of 5478945 is about 2340.7146344653. The cubic root of 5478945 is about 176.2918818029.

The spelling of 5478945 in words is "five million, four hundred seventy-eight thousand, nine hundred forty-five".