23535649 has 4 divisors (see below), whose sum is σ = 23592240. Its totient is φ = 23479060.

The previous prime is 23535583. The next prime is 23535653. The reversal of 23535649 is 94653532.

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 23535649 - 2⁹ = 23535137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23535689) 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, 27667 + ... + 28504.

It is an arithmetic number, because the mean of its divisors is an integer number (5898060).

Almost surely, 2^23535649 is an apocalyptic number.

It is an amenable number.

23535649 is a deficient number, since it is larger than the sum of its proper divisors (56591).

23535649 is an equidigital number, since it uses as much as digits as its factorization.

23535649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56590.

The product of its digits is 97200, while the sum is 37.

The square root of 23535649 is about 4851.3553776239. The cubic root of 23535649 is about 286.5774800675.

The spelling of 23535649 in words is "twenty-three million, five hundred thirty-five thousand, six hundred forty-nine".