69990293 has 2 divisors, whose sum is σ = 69990294. Its totient is φ = 69990292.

The previous prime is 69990289. The next prime is 69990299. The reversal of 69990293 is 39209996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68923204 + 1067089 = 8302^2 + 1033^2 .

It is a cyclic number.

It is not a de Polignac number, because 69990293 - 2² = 69990289 is a prime.

It is a super-2 number, since 2×69990293² = 9797282228451698, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69990299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34995146 + 34995147.

It is an arithmetic number, because the mean of its divisors is an integer number (34995147).

Almost surely, 2^69990293 is an apocalyptic number.

It is an amenable number.

69990293 is a deficient number, since it is larger than the sum of its proper divisors (1).

69990293 is an equidigital number, since it uses as much as digits as its factorization.

69990293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 47.

The square root of 69990293 is about 8366.0201410229. The cubic root of 69990293 is about 412.1094789495.

The spelling of 69990293 in words is "sixty-nine million, nine hundred ninety thousand, two hundred ninety-three".