3954903 has 4 divisors (see below), whose sum is σ = 5273208. Its totient is φ = 2636600.

The previous prime is 3954889. The next prime is 3954959. The reversal of 3954903 is 3094593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3094593 = 3 ⋅1031531.

It is a cyclic number.

It is not a de Polignac number, because 3954903 - 2⁵ = 3954871 is a prime.

It is a D-number.

3954903 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954803) 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, 659148 + ... + 659153.

It is an arithmetic number, because the mean of its divisors is an integer number (1318302).

Almost surely, 2^3954903 is an apocalyptic number.

3954903 is a deficient number, since it is larger than the sum of its proper divisors (1318305).

3954903 is a wasteful number, since it uses less digits than its factorization.

3954903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318304.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 3954903 is about 1988.6937924175. The cubic root of 3954903 is about 158.1412905878.

The spelling of 3954903 in words is "three million, nine hundred fifty-four thousand, nine hundred three".