23028737 has 4 divisors (see below), whose sum is σ = 23320320. Its totient is φ = 22737156.

The previous prime is 23028713. The next prime is 23028739. The reversal of 23028737 is 73782032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23028737 - 2¹² = 23024641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23028739) 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, 145673 + ... + 145830.

It is an arithmetic number, because the mean of its divisors is an integer number (5830080).

Almost surely, 2^23028737 is an apocalyptic number.

It is an amenable number.

23028737 is a deficient number, since it is larger than the sum of its proper divisors (291583).

23028737 is an equidigital number, since it uses as much as digits as its factorization.

23028737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291582.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 23028737 is about 4798.8266274163. The cubic root of 23028737 is about 284.5050895687.

The spelling of 23028737 in words is "twenty-three million, twenty-eight thousand, seven hundred thirty-seven".