2799691387 has 2 divisors, whose sum is σ = 2799691388. Its totient is φ = 2799691386.

The previous prime is 2799691381. The next prime is 2799691403. The reversal of 2799691387 is 7831969972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2799691387 - 2¹⁹ = 2799167099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2799691381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399845693 + 1399845694.

It is an arithmetic number, because the mean of its divisors is an integer number (1399845694).

Almost surely, 2^2799691387 is an apocalyptic number.

2799691387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2799691387 is an equidigital number, since it uses as much as digits as its factorization.

2799691387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 61.

The square root of 2799691387 is about 52912.1100221868. The cubic root of 2799691387 is about 1409.4079614627.

The spelling of 2799691387 in words is "two billion, seven hundred ninety-nine million, six hundred ninety-one thousand, three hundred eighty-seven".