2690993 has 2 divisors, whose sum is σ = 2690994.
Its totient is φ = 2690992.
The previous prime is 2690959. The next prime is 2691001. The reversal of 2690993 is 3990962.
2690993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1420864 + 1270129 = 1192^2 + 1127^2
It is a cyclic number.
It is not a de Polignac number, because 2690993 - 212 = 2686897 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (2690923) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345496 + 1345497.
It is an arithmetic number, because the mean of its divisors is an integer number (1345497).
22690993 is an apocalyptic number.
It is an amenable number.
2690993 is a deficient number, since it is larger than the sum of its proper divisors (1).
2690993 is an equidigital number, since it uses as much as digits as its factorization.
2690993 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 26244, while the sum is 38.
The square root of 2690993 is about 1640.4246401466.
The cubic root of 2690993 is about 139.0926525451.
It can be divided in two parts, 26 and 90993, that added together give a palindrome (91019).
The spelling of 2690993 in words is "two million, six hundred ninety thousand, nine hundred ninety-three".