2698698623 has 2 divisors, whose sum is σ = 2698698624. Its totient is φ = 2698698622.

The previous prime is 2698698599. The next prime is 2698698631. The reversal of 2698698623 is 3268968962.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2698698623 - 2¹² = 2698694527 is a prime.

It is a super-2 number, since 2×2698698623² = 14565948515564192258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2698698523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1349349311 + 1349349312.

It is an arithmetic number, because the mean of its divisors is an integer number (1349349312).

Almost surely, 2^2698698623 is an apocalyptic number.

2698698623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2698698623 is an equidigital number, since it uses as much as digits as its factorization.

2698698623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13436928, while the sum is 59.

The square root of 2698698623 is about 51949.0002117461. Note that the first 3 decimals coincide. The cubic root of 2698698623 is about 1392.2528935026.

The spelling of 2698698623 in words is "two billion, six hundred ninety-eight million, six hundred ninety-eight thousand, six hundred twenty-three".