23038357 has 4 divisors (see below), whose sum is σ = 23057676. Its totient is φ = 23019040.

The previous prime is 23038339. The next prime is 23038369. The reversal of 23038357 is 75383032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6765201 + 16273156 = 2601^2 + 4034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23038357 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23038397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7744 + ... + 10297.

It is an arithmetic number, because the mean of its divisors is an integer number (5764419).

Almost surely, 2^23038357 is an apocalyptic number.

It is an amenable number.

23038357 is a deficient number, since it is larger than the sum of its proper divisors (19319).

23038357 is a wasteful number, since it uses less digits than its factorization.

23038357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19318.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 23038357 is about 4799.8288511154. The cubic root of 23038357 is about 284.5447003377.

The spelling of 23038357 in words is "twenty-three million, thirty-eight thousand, three hundred fifty-seven".