3993537 has 8 divisors (see below), whose sum is σ = 5400000. Its totient is φ = 2624720.

The previous prime is 3993527. The next prime is 3993547. The reversal of 3993537 is 7353993.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3993527) and next prime (3993547).

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

It is a cyclic number.

It is not a de Polignac number, because 3993537 - 2¹⁴ = 3977153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3993495 and 3993504.

It is not an unprimeable number, because it can be changed into a prime (3993527) 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, 9162 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (675000).

Almost surely, 2^3993537 is an apocalyptic number.

It is an amenable number.

3993537 is a deficient number, since it is larger than the sum of its proper divisors (1406463).

3993537 is a wasteful number, since it uses less digits than its factorization.

3993537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18823.

The product of its digits is 76545, while the sum is 39.

The square root of 3993537 is about 1998.3835968102. The cubic root of 3993537 is about 158.6545643344.

The spelling of 3993537 in words is "three million, nine hundred ninety-three thousand, five hundred thirty-seven".