3974892909 has 8 divisors (see below), whose sum is σ = 5707538592. Its totient is φ = 2446087920.

The previous prime is 3974892871. The next prime is 3974892923. The reversal of 3974892909 is 9092984793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3974892909 - 2⁸ = 3974892653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974892989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50960127 + ... + 50960204.

It is an arithmetic number, because the mean of its divisors is an integer number (713442324).

Almost surely, 2^3974892909 is an apocalyptic number.

3974892909 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3974892909 is a deficient number, since it is larger than the sum of its proper divisors (1732645683).

3974892909 is a wasteful number, since it uses less digits than its factorization.

3974892909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101920347.

The product of its (nonzero) digits is 8817984, while the sum is 60.

The square root of 3974892909 is about 63046.7517719985. The cubic root of 3974892909 is about 1584.0728268316.

The spelling of 3974892909 in words is "three billion, nine hundred seventy-four million, eight hundred ninety-two thousand, nine hundred nine".