2951997443 has 2 divisors, whose sum is σ = 2951997444. Its totient is φ = 2951997442.

The previous prime is 2951997439. The next prime is 2951997457. The reversal of 2951997443 is 3447991592.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2951997443 - 2² = 2951997439 is a prime.

It is not a weakly prime, because it can be changed into another prime (2951997143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1475998721 + 1475998722.

It is an arithmetic number, because the mean of its divisors is an integer number (1475998722).

Almost surely, 2^2951997443 is an apocalyptic number.

2951997443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2951997443 is an equidigital number, since it uses as much as digits as its factorization.

2951997443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 53.

The square root of 2951997443 is about 54332.2872977017. The cubic root of 2951997443 is about 1434.5157658286.

The spelling of 2951997443 in words is "two billion, nine hundred fifty-one million, nine hundred ninety-seven thousand, four hundred forty-three".