3688990131 has 8 divisors (see below), whose sum is σ = 4918989760. Its totient is φ = 2459158632.

The previous prime is 3688990121. The next prime is 3688990139. The reversal of 3688990131 is 1310998863.

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

It is not a de Polignac number, because 3688990131 - 2¹⁰ = 3688989107 is a prime.

It is a super-2 number, since 2×3688990131² = 27217296373230794322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3688990139) 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, 23976 + ... + 89178.

It is an arithmetic number, because the mean of its divisors is an integer number (614873720).

Almost surely, 2^3688990131 is an apocalyptic number.

3688990131 is a deficient number, since it is larger than the sum of its proper divisors (1229999629).

3688990131 is a wasteful number, since it uses less digits than its factorization.

3688990131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84065.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 3688990131 is about 60737.0573126489. The cubic root of 3688990131 is about 1545.1447281185.

The spelling of 3688990131 in words is "three billion, six hundred eighty-eight million, nine hundred ninety thousand, one hundred thirty-one".