23490007 has 4 divisors (see below), whose sum is σ = 24062976. Its totient is φ = 22917040.

The previous prime is 23490001. The next prime is 23490059. The reversal of 23490007 is 70009432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23490007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23490001) 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, 286423 + ... + 286504.

It is an arithmetic number, because the mean of its divisors is an integer number (6015744).

Almost surely, 2^23490007 is an apocalyptic number.

23490007 is a deficient number, since it is larger than the sum of its proper divisors (572969).

23490007 is an equidigital number, since it uses as much as digits as its factorization.

23490007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572968.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 23490007 is about 4846.6490485695. The cubic root of 23490007 is about 286.3921097290.

Adding to 23490007 its reverse (70009432), we get a palindrome (93499439).

The spelling of 23490007 in words is "twenty-three million, four hundred ninety thousand, seven".