3946954209 has 48 divisors (see below), whose sum is σ = 6138428160. Its totient is φ = 2236688640.

The previous prime is 3946954199. The next prime is 3946954217. The reversal of 3946954209 is 9024596493.

It is not a de Polignac number, because 3946954209 - 2⁸ = 3946953953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3946954229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1553262 + ... + 1555800.

It is an arithmetic number, because the mean of its divisors is an integer number (127883920).

Almost surely, 2^3946954209 is an apocalyptic number.

It is an amenable number.

3946954209 is a deficient number, since it is larger than the sum of its proper divisors (2191473951).

3946954209 is a wasteful number, since it uses less digits than its factorization.

3946954209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750 (or 2733 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The square root of 3946954209 is about 62824.7897648691. The cubic root of 3946954209 is about 1580.3527238201.

The spelling of 3946954209 in words is "three billion, nine hundred forty-six million, nine hundred fifty-four thousand, two hundred nine".