11390947 has 2 divisors, whose sum is σ = 11390948. Its totient is φ = 11390946.

The previous prime is 11390941. The next prime is 11390963. The reversal of 11390947 is 74909311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11390947 is a prime.

It is not a weakly prime, because it can be changed into another prime (11390941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5695473 + 5695474.

It is an arithmetic number, because the mean of its divisors is an integer number (5695474).

Almost surely, 2^11390947 is an apocalyptic number.

11390947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11390947 is an equidigital number, since it uses as much as digits as its factorization.

11390947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 11390947 is about 3375.0477033666. The cubic root of 11390947 is about 225.0021201446.

The spelling of 11390947 in words is "eleven million, three hundred ninety thousand, nine hundred forty-seven".