290693371 has 2 divisors, whose sum is σ = 290693372. Its totient is φ = 290693370.

The previous prime is 290693357. The next prime is 290693399. The reversal of 290693371 is 173396092.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 290693371 - 2⁵ = 290693339 is a prime.

It is not a weakly prime, because it can be changed into another prime (290693171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145346685 + 145346686.

It is an arithmetic number, because the mean of its divisors is an integer number (145346686).

Almost surely, 2^290693371 is an apocalyptic number.

290693371 is a deficient number, since it is larger than the sum of its proper divisors (1).

290693371 is an equidigital number, since it uses as much as digits as its factorization.

290693371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 290693371 is about 17049.7322852882. The cubic root of 290693371 is about 662.4377032202.

The spelling of 290693371 in words is "two hundred ninety million, six hundred ninety-three thousand, three hundred seventy-one".