9623491 has 2 divisors, whose sum is σ = 9623492. Its totient is φ = 9623490.

The previous prime is 9623483. The next prime is 9623503. The reversal of 9623491 is 1943269.

It is a weak prime.

It is an emirp because it is prime and its reverse (1943269) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9623491 - 2³ = 9623483 is a prime.

It is a super-2 number, since 2×9623491² = 185223158054162, which contains 22 as substring.

9623491 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9623401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4811745 + 4811746.

It is an arithmetic number, because the mean of its divisors is an integer number (4811746).

Almost surely, 2^9623491 is an apocalyptic number.

9623491 is a deficient number, since it is larger than the sum of its proper divisors (1).

9623491 is an equidigital number, since it uses as much as digits as its factorization.

9623491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 9623491 is about 3102.1752045944. The cubic root of 9623491 is about 212.7049261896.

The spelling of 9623491 in words is "nine million, six hundred twenty-three thousand, four hundred ninety-one".