3984993 has 6 divisors (see below), whose sum is σ = 5756114. Its totient is φ = 2656656.

The previous prime is 3984983. The next prime is 3985013. The reversal of 3984993 is 3994893.

It can be written as a sum of positive squares in only one way, i.e., 2712609 + 1272384 = 1647^2 + 1128^2 .

It is not a de Polignac number, because 3984993 - 2¹³ = 3976801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3984943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221380 + ... + 221397.

Almost surely, 2^3984993 is an apocalyptic number.

It is an amenable number.

3984993 is a deficient number, since it is larger than the sum of its proper divisors (1771121).

3984993 is a wasteful number, since it uses less digits than its factorization.

3984993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442783 (or 442780 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 3984993 is about 1996.2447244764. The cubic root of 3984993 is about 158.5413386852.

The spelling of 3984993 in words is "three million, nine hundred eighty-four thousand, nine hundred ninety-three".