3654994571 has 2 divisors, whose sum is σ = 3654994572. Its totient is φ = 3654994570.

The previous prime is 3654994559. The next prime is 3654994573. The reversal of 3654994571 is 1754994563.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3654994571 - 2⁶ = 3654994507 is a prime.

Together with 3654994573, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3654994573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1827497285 + 1827497286.

It is an arithmetic number, because the mean of its divisors is an integer number (1827497286).

Almost surely, 2^3654994571 is an apocalyptic number.

3654994571 is a deficient number, since it is larger than the sum of its proper divisors (1).

3654994571 is an equidigital number, since it uses as much as digits as its factorization.

3654994571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 53.

The square root of 3654994571 is about 60456.5511007699. The cubic root of 3654994571 is about 1540.3836918522.

The spelling of 3654994571 in words is "three billion, six hundred fifty-four million, nine hundred ninety-four thousand, five hundred seventy-one".