23391071 has 8 divisors (see below), whose sum is σ = 26860800. Its totient is φ = 20145240.

The previous prime is 23391061. The next prime is 23391079. The reversal of 23391071 is 17019332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23391071 - 2¹⁰ = 23390047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23391071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23391079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55751 + ... + 56168.

It is an arithmetic number, because the mean of its divisors is an integer number (3357600).

Almost surely, 2^23391071 is an apocalyptic number.

23391071 is a deficient number, since it is larger than the sum of its proper divisors (3469729).

23391071 is a wasteful number, since it uses less digits than its factorization.

23391071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111949.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 23391071 is about 4836.4316391323. The cubic root of 23391071 is about 285.9894652745.

The spelling of 23391071 in words is "twenty-three million, three hundred ninety-one thousand, seventy-one".