3993530 has 8 divisors (see below), whose sum is σ = 7188372. Its totient is φ = 1597408.

The previous prime is 3993527. The next prime is 3993547. The reversal of 3993530 is 353993.

It can be written as a sum of positive squares in 2 ways, for example, as 3924361 + 69169 = 1981^2 + 263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

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, 199667 + ... + 199686.

Almost surely, 2^3993530 is an apocalyptic number.

3993530 is a deficient number, since it is larger than the sum of its proper divisors (3194842).

3993530 is a wasteful number, since it uses less digits than its factorization.

3993530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399360.

The product of its (nonzero) digits is 10935, while the sum is 32.

The square root of 3993530 is about 1998.3818453939. The cubic root of 3993530 is about 158.6544716361.

The spelling of 3993530 in words is "three million, nine hundred ninety-three thousand, five hundred thirty".