3993819247 has 8 divisors (see below), whose sum is σ = 4586204160. Its totient is φ = 3439652760.

The previous prime is 3993819239. The next prime is 3993819253. The reversal of 3993819247 is 7429183993.

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 3993819247 - 2³ = 3993819239 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 (3993819287) 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, 9554383 + ... + 9554800.

It is an arithmetic number, because the mean of its divisors is an integer number (573275520).

Almost surely, 2^3993819247 is an apocalyptic number.

3993819247 is a deficient number, since it is larger than the sum of its proper divisors (592384913).

3993819247 is a wasteful number, since it uses less digits than its factorization.

3993819247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19109213.

The product of its digits is 2939328, while the sum is 55.

The square root of 3993819247 is about 63196.6711702444. The cubic root of 3993819247 is about 1586.5830193341.

The spelling of 3993819247 in words is "three billion, nine hundred ninety-three million, eight hundred nineteen thousand, two hundred forty-seven".