2993664397 has 2 divisors, whose sum is σ = 2993664398. Its totient is φ = 2993664396.

The previous prime is 2993664391. The next prime is 2993664407. The reversal of 2993664397 is 7934663992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2289239716 + 704424681 = 47846^2 + 26541^2 .

It is a cyclic number.

It is not a de Polignac number, because 2993664397 - 2³¹ = 846180749 is a prime.

It is a super-3 number, since 3×2993664397³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2993664391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1496832198 + 1496832199.

It is an arithmetic number, because the mean of its divisors is an integer number (1496832199).

Almost surely, 2^2993664397 is an apocalyptic number.

It is an amenable number.

2993664397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2993664397 is an equidigital number, since it uses as much as digits as its factorization.

2993664397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13226976, while the sum is 58.

The square root of 2993664397 is about 54714.3893048255. The cubic root of 2993664397 is about 1441.2335746770.

The spelling of 2993664397 in words is "two billion, nine hundred ninety-three million, six hundred sixty-four thousand, three hundred ninety-seven".