3704025581 has 2 divisors, whose sum is σ = 3704025582. Its totient is φ = 3704025580.

The previous prime is 3704025553. The next prime is 3704025583. The reversal of 3704025581 is 1855204073.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3665212681 + 38812900 = 60541^2 + 6230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3704025581 is a prime.

It is a super-2 number, since 2×3704025581² = 27439611009404775122, which contains 22 as substring.

Together with 3704025583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3704025583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1852012790 + 1852012791.

It is an arithmetic number, because the mean of its divisors is an integer number (1852012791).

Almost surely, 2^3704025581 is an apocalyptic number.

It is an amenable number.

3704025581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3704025581 is an equidigital number, since it uses as much as digits as its factorization.

3704025581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 3704025581 is about 60860.7063794038. The cubic root of 3704025581 is about 1547.2410972345.

The spelling of 3704025581 in words is "three billion, seven hundred four million, twenty-five thousand, five hundred eighty-one".