3856088381 has 4 divisors (see below), whose sum is σ = 3856801500. Its totient is φ = 3855375264.

The previous prime is 3856088371. The next prime is 3856088387. The reversal of 3856088381 is 1838806583.

3856088381 = 43909² + 43910².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1838806583 = 761 ⋅2416303.

It can be written as a sum of positive squares in 2 ways, for example, as 1928000281 + 1928088100 = 43909^2 + 43910^2 .

It is a cyclic number.

It is not a de Polignac number, because 3856088381 - 2¹⁴ = 3856071997 is a prime.

It is a super-2 number, since 2×3856088381² = 29738835204166402322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856088387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348386 + ... + 359283.

It is an arithmetic number, because the mean of its divisors is an integer number (964200375).

Almost surely, 2^3856088381 is an apocalyptic number.

3856088381 is the 43910-th centered square number.

It is an amenable number.

3856088381 is a deficient number, since it is larger than the sum of its proper divisors (713119).

3856088381 is an equidigital number, since it uses as much as digits as its factorization.

3856088381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713118.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The square root of 3856088381 is about 62097.4104210473. The cubic root of 3856088381 is about 1568.1309497147.

The spelling of 3856088381 in words is "three billion, eight hundred fifty-six million, eighty-eight thousand, three hundred eighty-one".