3645246971 has 2 divisors, whose sum is σ = 3645246972. Its totient is φ = 3645246970.

The previous prime is 3645246949. The next prime is 3645246989. The reversal of 3645246971 is 1796425463.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3645246971 - 2⁶ = 3645246907 is a prime.

It is not a weakly prime, because it can be changed into another prime (3645246911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822623485 + 1822623486.

It is an arithmetic number, because the mean of its divisors is an integer number (1822623486).

Almost surely, 2^3645246971 is an apocalyptic number.

3645246971 is a deficient number, since it is larger than the sum of its proper divisors (1).

3645246971 is an equidigital number, since it uses as much as digits as its factorization.

3645246971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 47.

The square root of 3645246971 is about 60375.8807057918. The cubic root of 3645246971 is about 1539.0131096166.

The spelling of 3645246971 in words is "three billion, six hundred forty-five million, two hundred forty-six thousand, nine hundred seventy-one".