23406705 has 128 divisors (see below), whose sum is σ = 53084160. Its totient is φ = 9538560.

The previous prime is 23406701. The next prime is 23406731. The reversal of 23406705 is 50760432.

It is a happy number.

It is not a de Polignac number, because 23406705 - 2² = 23406701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23406701) 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 127 ways as a sum of consecutive naturals, for example, 497992 + ... + 498038.

It is an arithmetic number, because the mean of its divisors is an integer number (414720).

Almost surely, 2^23406705 is an apocalyptic number.

It is an amenable number.

23406705 is an abundant number, since it is smaller than the sum of its proper divisors (29677455).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23406705 is a wasteful number, since it uses less digits than its factorization.

23406705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 23406705 is about 4838.0476434198. The cubic root of 23406705 is about 286.0531671251.

It can be divided in two parts, 2340 and 6705, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 23406705 in words is "twenty-three million, four hundred six thousand, seven hundred five".