290390747 has 2 divisors, whose sum is σ = 290390748. Its totient is φ = 290390746.

The previous prime is 290390731. The next prime is 290390773. The reversal of 290390747 is 747093092.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 290390747 - 2⁴ = 290390731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (290390147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145195373 + 145195374.

It is an arithmetic number, because the mean of its divisors is an integer number (145195374).

Almost surely, 2^290390747 is an apocalyptic number.

290390747 is a deficient number, since it is larger than the sum of its proper divisors (1).

290390747 is an equidigital number, since it uses as much as digits as its factorization.

290390747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 290390747 is about 17040.8552308856. The cubic root of 290390747 is about 662.2077482533.

The spelling of 290390747 in words is "two hundred ninety million, three hundred ninety thousand, seven hundred forty-seven".