3969738505 has 8 divisors (see below), whose sum is σ = 4774442112. Its totient is φ = 3168620208.

The previous prime is 3969738499. The next prime is 3969738551. The reversal of 3969738505 is 5058379693.

It is a happy number.

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 3969738505 - 2³ = 3969738497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893889 + ... + 898318.

It is an arithmetic number, because the mean of its divisors is an integer number (596805264).

Almost surely, 2^3969738505 is an apocalyptic number.

It is an amenable number.

3969738505 is a deficient number, since it is larger than the sum of its proper divisors (804703607).

3969738505 is a wasteful number, since it uses less digits than its factorization.

3969738505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792655.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The square root of 3969738505 is about 63005.8608781755. The cubic root of 3969738505 is about 1583.3878202733.

The spelling of 3969738505 in words is "three billion, nine hundred sixty-nine million, seven hundred thirty-eight thousand, five hundred five".