2791190947 has 2 divisors, whose sum is σ = 2791190948. Its totient is φ = 2791190946.

The previous prime is 2791190933. The next prime is 2791190999. The reversal of 2791190947 is 7490911972.

2791190947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2791190947 - 2¹¹ = 2791188899 is a prime.

It is a super-2 number, since 2×2791190947² = 15581493805229513618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2791190947.

It is not a weakly prime, because it can be changed into another prime (2791190147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395595473 + 1395595474.

It is an arithmetic number, because the mean of its divisors is an integer number (1395595474).

Almost surely, 2^2791190947 is an apocalyptic number.

2791190947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2791190947 is an equidigital number, since it uses as much as digits as its factorization.

2791190947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 49.

The square root of 2791190947 is about 52831.7229228803. The cubic root of 2791190947 is about 1407.9800977179.

The spelling of 2791190947 in words is "two billion, seven hundred ninety-one million, one hundred ninety thousand, nine hundred forty-seven".