3869730399 has 8 divisors (see below), whose sum is σ = 5431200640. Its totient is φ = 2444040216.

The previous prime is 3869730367. The next prime is 3869730401. The reversal of 3869730399 is 9930379683.

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

It is not a de Polignac number, because 3869730399 - 2⁵ = 3869730367 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 67890007 = 3869730399 / (3 + 8 + 6 + 9 + 7 + 3 + 0 + 3 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869730199) 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, 33944947 + ... + 33945060.

It is an arithmetic number, because the mean of its divisors is an integer number (678900080).

Almost surely, 2^3869730399 is an apocalyptic number.

3869730399 is a deficient number, since it is larger than the sum of its proper divisors (1561470241).

3869730399 is a wasteful number, since it uses less digits than its factorization.

3869730399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67890029.

The product of its (nonzero) digits is 6613488, while the sum is 57.

The square root of 3869730399 is about 62207.1571364582. The cubic root of 3869730399 is about 1569.9780108351.

It can be divided in two parts, 38697 and 30399, that added together give a palindrome (69096).

The spelling of 3869730399 in words is "three billion, eight hundred sixty-nine million, seven hundred thirty thousand, three hundred ninety-nine".