23378709 has 8 divisors (see below), whose sum is σ = 32014240. Its totient is φ = 15164496.

The previous prime is 23378699. The next prime is 23378711. The reversal of 23378709 is 90787332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23378709 - 2¹² = 23374613 is a prime.

It is a super-3 number, since 3×23378709³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23373709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105199 + ... + 105420.

It is an arithmetic number, because the mean of its divisors is an integer number (4001780).

Almost surely, 2^23378709 is an apocalyptic number.

It is an amenable number.

23378709 is a deficient number, since it is larger than the sum of its proper divisors (8635531).

23378709 is a wasteful number, since it uses less digits than its factorization.

23378709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210659.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 23378709 is about 4835.1534618872. The cubic root of 23378709 is about 285.9390753235.

The spelling of 23378709 in words is "twenty-three million, three hundred seventy-eight thousand, seven hundred nine".