23949029 has 4 divisors (see below), whose sum is σ = 25791276. Its totient is φ = 22106784.

The previous prime is 23949011. The next prime is 23949031. The reversal of 23949029 is 92094932.

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 16120225 + 7828804 = 4015^2 + 2798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23949029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23948983 and 23949001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23949229) 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, 921104 + ... + 921129.

It is an arithmetic number, because the mean of its divisors is an integer number (6447819).

Almost surely, 2^23949029 is an apocalyptic number.

It is an amenable number.

23949029 is a deficient number, since it is larger than the sum of its proper divisors (1842247).

23949029 is a wasteful number, since it uses less digits than its factorization.

23949029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842246.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 23949029 is about 4893.7745146257. The cubic root of 23949029 is about 288.2455668216.

The spelling of 23949029 in words is "twenty-three million, nine hundred forty-nine thousand, twenty-nine".