8478472 has 16 divisors (see below), whose sum is σ = 16285500. Its totient is φ = 4135680.

The previous prime is 8478433. The next prime is 8478493. The reversal of 8478472 is 2748748.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5635876 + 2842596 = 2374^2 + 1686^2 .

It is a d-powerful number, because it can be written as 8³ + 4⁶ + 7⁴ + 8³ + 4⁸ + 7⁵ + 2²³ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12597 + ... + 13252.

Almost surely, 2^8478472 is an apocalyptic number.

8478472 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

8478472 is a deficient number, since it is larger than the sum of its proper divisors (7807028).

8478472 is a wasteful number, since it uses less digits than its factorization.

8478472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25896 (or 25892 counting only the distinct ones).

The product of its digits is 100352, while the sum is 40.

The square root of 8478472 is about 2911.7815852155. The cubic root of 8478472 is about 203.9103155695.

The spelling of 8478472 in words is "eight million, four hundred seventy-eight thousand, four hundred seventy-two".