3940201547 has 2 divisors, whose sum is σ = 3940201548. Its totient is φ = 3940201546.

The previous prime is 3940201523. The next prime is 3940201549. The reversal of 3940201547 is 7451020493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3940201547 - 2²⁴ = 3923424331 is a prime.

Together with 3940201549, 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 (3940201549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1970100773 + 1970100774.

It is an arithmetic number, because the mean of its divisors is an integer number (1970100774).

Almost surely, 2^3940201547 is an apocalyptic number.

3940201547 is a deficient number, since it is larger than the sum of its proper divisors (1).

3940201547 is an equidigital number, since it uses as much as digits as its factorization.

3940201547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 3940201547 is about 62771.0247407193. The cubic root of 3940201547 is about 1579.4509584881.

The spelling of 3940201547 in words is "three billion, nine hundred forty million, two hundred one thousand, five hundred forty-seven".