3949499 has 4 divisors (see below), whose sum is σ = 3953520. Its totient is φ = 3945480.

The previous prime is 3949487. The next prime is 3949501. The reversal of 3949499 is 9949493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9949493 = 421 ⋅23633.

It is a cyclic number.

It is not a de Polignac number, because 3949499 - 2¹⁶ = 3883963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3949409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554 + ... + 2864.

It is an arithmetic number, because the mean of its divisors is an integer number (988380).

Almost surely, 2^3949499 is an apocalyptic number.

3949499 is a deficient number, since it is larger than the sum of its proper divisors (4021).

3949499 is a wasteful number, since it uses less digits than its factorization.

3949499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020.

The product of its digits is 314928, while the sum is 47.

The square root of 3949499 is about 1987.3346472097. The cubic root of 3949499 is about 158.0692293960.

It can be divided in two parts, 39494 and 99, that added together give a palindrome (39593).

The spelling of 3949499 in words is "three million, nine hundred forty-nine thousand, four hundred ninety-nine".