23078811 has 16 divisors (see below), whose sum is σ = 35301888. Its totient is φ = 13137600.

The previous prime is 23078791. The next prime is 23078813. The reversal of 23078811 is 11887032.

It is a happy number.

It is not a de Polignac number, because 23078811 - 2¹⁴ = 23062427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23078813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3946 + ... + 7856.

It is an arithmetic number, because the mean of its divisors is an integer number (2206368).

Almost surely, 2^23078811 is an apocalyptic number.

23078811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23078811 is a deficient number, since it is larger than the sum of its proper divisors (12223077).

23078811 is a wasteful number, since it uses less digits than its factorization.

23078811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 23078811 is about 4804.0411113978. The cubic root of 23078811 is about 284.7111508697.

The spelling of 23078811 in words is "twenty-three million, seventy-eight thousand, eight hundred eleven".