3641873731 has 2 divisors, whose sum is σ = 3641873732. Its totient is φ = 3641873730.

The previous prime is 3641873699. The next prime is 3641873771. The reversal of 3641873731 is 1373781463.

It is a weak prime.

It is an emirp because it is prime and its reverse (1373781463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3641873731 - 2⁵ = 3641873699 is a prime.

It is a super-2 number, since 2×3641873731² = 26526488545095720722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3641873771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820936865 + 1820936866.

It is an arithmetic number, because the mean of its divisors is an integer number (1820936866).

Almost surely, 2^3641873731 is an apocalyptic number.

3641873731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3641873731 is an equidigital number, since it uses as much as digits as its factorization.

3641873731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 43.

The square root of 3641873731 is about 60347.9389126091. The cubic root of 3641873731 is about 1538.5382389329.

The spelling of 3641873731 in words is "three billion, six hundred forty-one million, eight hundred seventy-three thousand, seven hundred thirty-one".