2723398819 has 2 divisors, whose sum is σ = 2723398820. Its totient is φ = 2723398818.

The previous prime is 2723398817. The next prime is 2723398823. The reversal of 2723398819 is 9188933272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2723398819 - 2¹ = 2723398817 is a prime.

It is a super-2 number, since 2×2723398819² = 14833802254661189522, which contains 22 as substring.

Together with 2723398817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2723398817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361699409 + 1361699410.

It is an arithmetic number, because the mean of its divisors is an integer number (1361699410).

Almost surely, 2^2723398819 is an apocalyptic number.

2723398819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2723398819 is an equidigital number, since it uses as much as digits as its factorization.

2723398819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 2723398819 is about 52186.1937585028. The cubic root of 2723398819 is about 1396.4875930137.

The spelling of 2723398819 in words is "two billion, seven hundred twenty-three million, three hundred ninety-eight thousand, eight hundred nineteen".