3924996517 has 4 divisors (see below), whose sum is σ = 4226919340. Its totient is φ = 3623073696.

The previous prime is 3924996487. The next prime is 3924996547. The reversal of 3924996517 is 7156994293.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7156994293 = 8117 ⋅881729.

It is an interprime number because it is at equal distance from previous prime (3924996487) and next prime (3924996547).

It can be written as a sum of positive squares in 2 ways, for example, as 1046781316 + 2878215201 = 32354^2 + 53649^2 .

It is a cyclic number.

It is not a de Polignac number, because 3924996517 - 2²³ = 3916607909 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 (3924996547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150961392 + ... + 150961417.

It is an arithmetic number, because the mean of its divisors is an integer number (1056729835).

Almost surely, 2^3924996517 is an apocalyptic number.

It is an amenable number.

3924996517 is a deficient number, since it is larger than the sum of its proper divisors (301922823).

3924996517 is a wasteful number, since it uses less digits than its factorization.

3924996517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301922822.

The product of its digits is 3674160, while the sum is 55.

The square root of 3924996517 is about 62649.7926333360. The cubic root of 3924996517 is about 1577.4166668440.

The spelling of 3924996517 in words is "three billion, nine hundred twenty-four million, nine hundred ninety-six thousand, five hundred seventeen".