3949623997 has 8 divisors (see below), whose sum is σ = 4369367232. Its totient is φ = 3539995200.

The previous prime is 3949623959. The next prime is 3949624001. The reversal of 3949623997 is 7993269493.

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

It is a cyclic number.

It is not a de Polignac number, because 3949623997 - 2¹⁹ = 3949099709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949623397) 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, 2527788 + ... + 2529349.

It is an arithmetic number, because the mean of its divisors is an integer number (546170904).

Almost surely, 2^3949623997 is an apocalyptic number.

It is an amenable number.

3949623997 is a deficient number, since it is larger than the sum of its proper divisors (419743235).

3949623997 is a wasteful number, since it uses less digits than its factorization.

3949623997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057219.

The product of its digits is 19840464, while the sum is 61.

The square root of 3949623997 is about 62846.0340594377. The cubic root of 3949623997 is about 1580.7089694682.

The spelling of 3949623997 in words is "three billion, nine hundred forty-nine million, six hundred twenty-three thousand, nine hundred ninety-seven".