23471491 has 4 divisors (see below), whose sum is σ = 23703984. Its totient is φ = 23239000.

The previous prime is 23471467. The next prime is 23471501. The reversal of 23471491 is 19417432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23471491 - 2¹⁷ = 23340419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23471191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116095 + ... + 116296.

It is an arithmetic number, because the mean of its divisors is an integer number (5925996).

Almost surely, 2^23471491 is an apocalyptic number.

23471491 is a deficient number, since it is larger than the sum of its proper divisors (232493).

23471491 is a wasteful number, since it uses less digits than its factorization.

23471491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232492.

The product of its digits is 6048, while the sum is 31.

The square root of 23471491 is about 4844.7384862343. The cubic root of 23471491 is about 286.3168404136.

The spelling of 23471491 in words is "twenty-three million, four hundred seventy-one thousand, four hundred ninety-one".