3686062381 has 4 divisors (see below), whose sum is σ = 3688552764. Its totient is φ = 3683572000.

The previous prime is 3686062337. The next prime is 3686062421. The reversal of 3686062381 is 1832606863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1832606863 = 109 ⋅16812907.

It can be written as a sum of positive squares in 2 ways, for example, as 472192900 + 3213869481 = 21730^2 + 56691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3686062381 is a prime.

It is a super-2 number, since 2×3686062381² = 27174111753246778322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686062321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242970 + ... + 1245931.

It is an arithmetic number, because the mean of its divisors is an integer number (922138191).

Almost surely, 2^3686062381 is an apocalyptic number.

It is an amenable number.

3686062381 is a deficient number, since it is larger than the sum of its proper divisors (2490383).

3686062381 is a wasteful number, since it uses less digits than its factorization.

3686062381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490382.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 3686062381 is about 60712.9506859945. The cubic root of 3686062381 is about 1544.7358542706.

The spelling of 3686062381 in words is "three billion, six hundred eighty-six million, sixty-two thousand, three hundred eighty-one".