290640011 has 2 divisors, whose sum is σ = 290640012. Its totient is φ = 290640010.

The previous prime is 290639989. The next prime is 290640019. The reversal of 290640011 is 110046092.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290640011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (290640019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145320005 + 145320006.

It is an arithmetic number, because the mean of its divisors is an integer number (145320006).

Almost surely, 2^290640011 is an apocalyptic number.

290640011 is a deficient number, since it is larger than the sum of its proper divisors (1).

290640011 is an equidigital number, since it uses as much as digits as its factorization.

290640011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 290640011 is about 17048.1673795162. The cubic root of 290640011 is about 662.3971681382.

The spelling of 290640011 in words is "two hundred ninety million, six hundred forty thousand, eleven".