3847432 has 8 divisors (see below), whose sum is σ = 7213950. Its totient is φ = 1923712.

The previous prime is 3847421. The next prime is 3847433. The reversal of 3847432 is 2347483.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3786916 + 60516 = 1946^2 + 246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 3847394 and 3847403.

It is not an unprimeable number, because it can be changed into a prime (3847433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240457 + ... + 240472.

Almost surely, 2^3847432 is an apocalyptic number.

It is an amenable number.

3847432 is a deficient number, since it is larger than the sum of its proper divisors (3366518).

3847432 is a wasteful number, since it uses less digits than its factorization.

3847432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480935 (or 480931 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 3847432 is about 1961.4871908835. The cubic root of 3847432 is about 156.6956658758.

The spelling of 3847432 in words is "three million, eight hundred forty-seven thousand, four hundred thirty-two".