3723872387 has 2 divisors, whose sum is σ = 3723872388. Its totient is φ = 3723872386.

The previous prime is 3723872381. The next prime is 3723872413. The reversal of 3723872387 is 7832783273.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3723872387 - 2¹⁸ = 3723610243 is a prime.

It is a super-2 number, since 2×3723872387² = 27734451109322155538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3723872381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1861936193 + 1861936194.

It is an arithmetic number, because the mean of its divisors is an integer number (1861936194).

Almost surely, 2^3723872387 is an apocalyptic number.

3723872387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3723872387 is an equidigital number, since it uses as much as digits as its factorization.

3723872387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 50.

The square root of 3723872387 is about 61023.5396138244. The cubic root of 3723872387 is about 1549.9996374609. Note that the first 3 decimals are identical.

The spelling of 3723872387 in words is "three billion, seven hundred twenty-three million, eight hundred seventy-two thousand, three hundred eighty-seven".