290027987 has 2 divisors, whose sum is σ = 290027988. Its totient is φ = 290027986.

The previous prime is 290027957. The next prime is 290027993. The reversal of 290027987 is 789720092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 290027987 - 2⁶ = 290027923 is a prime.

It is not a weakly prime, because it can be changed into another prime (290027957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145013993 + 145013994.

It is an arithmetic number, because the mean of its divisors is an integer number (145013994).

Almost surely, 2^290027987 is an apocalyptic number.

290027987 is a deficient number, since it is larger than the sum of its proper divisors (1).

290027987 is an equidigital number, since it uses as much as digits as its factorization.

290027987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 290027987 is about 17030.2080727160. The cubic root of 290027987 is about 661.9318870968.

The spelling of 290027987 in words is "two hundred ninety million, twenty-seven thousand, nine hundred eighty-seven".