3929899 has 4 divisors (see below), whose sum is σ = 4021336. Its totient is φ = 3838464.

The previous prime is 3929879. The next prime is 3929917. The reversal of 3929899 is 9989293.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3929899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3929879) 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, 45654 + ... + 45739.

It is an arithmetic number, because the mean of its divisors is an integer number (1005334).

Almost surely, 2^3929899 is an apocalyptic number.

3929899 is a deficient number, since it is larger than the sum of its proper divisors (91437).

3929899 is an equidigital number, since it uses as much as digits as its factorization.

3929899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91436.

The product of its digits is 314928, while the sum is 49.

The square root of 3929899 is about 1982.3972861160. The cubic root of 3929899 is about 157.8073146484.

The spelling of 3929899 in words is "three million, nine hundred twenty-nine thousand, eight hundred ninety-nine".