43478625 has 48 divisors (see below), whose sum is σ = 76572288. Its totient is φ = 21868000.

The previous prime is 43478621. The next prime is 43478629. The reversal of 43478625 is 52687434.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (43478621) and next prime (43478629).

It is not a de Polignac number, because 43478625 - 2² = 43478621 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (43478621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 612340 + ... + 612410.

It is an arithmetic number, because the mean of its divisors is an integer number (1595256).

Almost surely, 2^43478625 is an apocalyptic number.

It is an amenable number.

43478625 is a deficient number, since it is larger than the sum of its proper divisors (33093663).

43478625 is an equidigital number, since it uses as much as digits as its factorization.

43478625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 102 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 43478625 is about 6593.8323454574. The cubic root of 43478625 is about 351.6348685588.

The spelling of 43478625 in words is "forty-three million, four hundred seventy-eight thousand, six hundred twenty-five".