3894928 has 10 divisors (see below), whose sum is σ = 7546454. Its totient is φ = 1947456.

The previous prime is 3894923. The next prime is 3894949. The reversal of 3894928 is 8294983.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3873024 + 21904 = 1968^2 + 148^2 .

It is not an unprimeable number, because it can be changed into a prime (3894923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121701 + ... + 121732.

Almost surely, 2^3894928 is an apocalyptic number.

It is an amenable number.

3894928 is a deficient number, since it is larger than the sum of its proper divisors (3651526).

3894928 is a wasteful number, since it uses less digits than its factorization.

3894928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243441 (or 243435 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 3894928 is about 1973.5571945094. The cubic root of 3894928 is about 157.3378258477.

The spelling of 3894928 in words is "three million, eight hundred ninety-four thousand, nine hundred twenty-eight".