2972787667 has 2 divisors, whose sum is σ = 2972787668. Its totient is φ = 2972787666.

The previous prime is 2972787613. The next prime is 2972787683. The reversal of 2972787667 is 7667872792.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2972787667 is a prime.

It is not a weakly prime, because it can be changed into another prime (2972784667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486393833 + 1486393834.

It is an arithmetic number, because the mean of its divisors is an integer number (1486393834).

Almost surely, 2^2972787667 is an apocalyptic number.

2972787667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2972787667 is an equidigital number, since it uses as much as digits as its factorization.

2972787667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24893568, while the sum is 61.

The square root of 2972787667 is about 54523.2763780754. The cubic root of 2972787667 is about 1437.8755431874.

The spelling of 2972787667 in words is "two billion, nine hundred seventy-two million, seven hundred eighty-seven thousand, six hundred sixty-seven".