1022390947 has 2 divisors, whose sum is σ = 1022390948. Its totient is φ = 1022390946.

The previous prime is 1022390939. The next prime is 1022390959. The reversal of 1022390947 is 7490932201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022390947 - 2³ = 1022390939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022393947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511195473 + 511195474.

It is an arithmetic number, because the mean of its divisors is an integer number (511195474).

Almost surely, 2^1022390947 is an apocalyptic number.

1022390947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022390947 is an equidigital number, since it uses as much as digits as its factorization.

1022390947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 1022390947 is about 31974.8486626598. The cubic root of 1022390947 is about 1007.4086257174.

The spelling of 1022390947 in words is "one billion, twenty-two million, three hundred ninety thousand, nine hundred forty-seven".