3993630 has 16 divisors (see below), whose sum is σ = 9584784. Its totient is φ = 1064960.

The previous prime is 3993617. The next prime is 3993631. The reversal of 3993630 is 363993.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3993591 and 3993600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3993631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66531 + ... + 66590.

It is an arithmetic number, because the mean of its divisors is an integer number (599049).

Almost surely, 2^3993630 is an apocalyptic number.

3993630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3993630 is an abundant number, since it is smaller than the sum of its proper divisors (5591154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3993630 is a wasteful number, since it uses less digits than its factorization.

3993630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133131.

The product of its (nonzero) digits is 13122, while the sum is 33.

The square root of 3993630 is about 1998.4068654806. The cubic root of 3993630 is about 158.6557958876.

The spelling of 3993630 in words is "three million, nine hundred ninety-three thousand, six hundred thirty".