3699987385 has 8 divisors (see below), whose sum is σ = 4447376136. Its totient is φ = 2955062400.

The previous prime is 3699987373. The next prime is 3699987397. The reversal of 3699987385 is 5837899963.

It is an interprime number because it is at equal distance from previous prime (3699987373) and next prime (3699987397).

It can be written as a sum of positive squares in 4 ways, for example, as 629608464 + 3070378921 = 25092^2 + 55411^2 .

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

It is not a de Polignac number, because 3699987385 - 2⁵ = 3699987353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3699987385.

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, 612634 + ... + 618643.

It is an arithmetic number, because the mean of its divisors is an integer number (555922017).

Almost surely, 2^3699987385 is an apocalyptic number.

It is an amenable number.

3699987385 is a deficient number, since it is larger than the sum of its proper divisors (747388751).

3699987385 is a wasteful number, since it uses less digits than its factorization.

3699987385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231883.

The product of its digits is 88179840, while the sum is 67.

The square root of 3699987385 is about 60827.5216082326. The cubic root of 3699987385 is about 1546.6786159887.

The spelling of 3699987385 in words is "three billion, six hundred ninety-nine million, nine hundred eighty-seven thousand, three hundred eighty-five".