23066749 has 4 divisors (see below), whose sum is σ = 23090620. Its totient is φ = 23042880.

The previous prime is 23066737. The next prime is 23066761. The reversal of 23066749 is 94766032.

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

It is an interprime number because it is at equal distance from previous prime (23066737) and next prime (23066761).

It can be written as a sum of positive squares in 2 ways, for example, as 15327225 + 7739524 = 3915^2 + 2782^2 .

It is a cyclic number.

It is not a de Polignac number, because 23066749 - 2⁵ = 23066717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23066789) 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, 10422 + ... + 12439.

It is an arithmetic number, because the mean of its divisors is an integer number (5772655).

Almost surely, 2^23066749 is an apocalyptic number.

It is an amenable number.

23066749 is a deficient number, since it is larger than the sum of its proper divisors (23871).

23066749 is a wasteful number, since it uses less digits than its factorization.

23066749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23870.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 23066749 is about 4802.7855459098. The cubic root of 23066749 is about 284.6615413764.

The spelling of 23066749 in words is "twenty-three million, sixty-six thousand, seven hundred forty-nine".