3966099 has 4 divisors (see below), whose sum is σ = 5288136. Its totient is φ = 2644064.

The previous prime is 3966091. The next prime is 3966113. The reversal of 3966099 is 9906693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3966099 - 2³ = 3966091 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3966099.

It is not an unprimeable number, because it can be changed into a prime (3966091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661014 + ... + 661019.

It is an arithmetic number, because the mean of its divisors is an integer number (1322034).

Almost surely, 2^3966099 is an apocalyptic number.

3966099 is a deficient number, since it is larger than the sum of its proper divisors (1322037).

3966099 is a wasteful number, since it uses less digits than its factorization.

3966099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322036.

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 3966099 is about 1991.5067160319. The cubic root of 3966099 is about 158.2903782521.

The spelling of 3966099 in words is "three million, nine hundred sixty-six thousand, ninety-nine".