23491379 has 4 divisors (see below), whose sum is σ = 23547600. Its totient is φ = 23435160.

The previous prime is 23491367. The next prime is 23491387. The reversal of 23491379 is 97319432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23491379 - 2¹² = 23487283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23491079) 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, 27479 + ... + 28320.

It is an arithmetic number, because the mean of its divisors is an integer number (5886900).

Almost surely, 2^23491379 is an apocalyptic number.

23491379 is a deficient number, since it is larger than the sum of its proper divisors (56221).

23491379 is an equidigital number, since it uses as much as digits as its factorization.

23491379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56220.

The product of its digits is 40824, while the sum is 38.

The square root of 23491379 is about 4846.7905875951. The cubic root of 23491379 is about 286.3976854663.

The spelling of 23491379 in words is "twenty-three million, four hundred ninety-one thousand, three hundred seventy-nine".