23001437 has 8 divisors (see below), whose sum is σ = 24033240. Its totient is φ = 21985600.

The previous prime is 23001413. The next prime is 23001439. The reversal of 23001437 is 73410032.

It can be written as a sum of positive squares in 4 ways, for example, as 3118756 + 19882681 = 1766^2 + 4459^2 .

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 23001437 - 2¹⁰ = 23000413 is a prime.

It is a super-2 number, since 2×23001437² = 1058132208129938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998 + ... + 6855.

It is an arithmetic number, because the mean of its divisors is an integer number (3004155).

Almost surely, 2^23001437 is an apocalyptic number.

It is an amenable number.

23001437 is a deficient number, since it is larger than the sum of its proper divisors (1031803).

23001437 is a wasteful number, since it uses less digits than its factorization.

23001437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 23001437 is about 4795.9813385792. The cubic root of 23001437 is about 284.3926205239.

Adding to 23001437 its reverse (73410032), we get a palindrome (96411469).

The spelling of 23001437 in words is "twenty-three million, one thousand, four hundred thirty-seven".