23898545 has 16 divisors (see below), whose sum is σ = 31413312. Its totient is φ = 17309760.

The previous prime is 23898533. The next prime is 23898647. The reversal of 23898545 is 54589832.

It is not a de Polignac number, because 23898545 - 2⁸ = 23898289 is a prime.

It is a super-2 number, since 2×23898545² = 1142280906234050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23898496 and 23898505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15374 + ... + 16856.

It is an arithmetic number, because the mean of its divisors is an integer number (1963332).

Almost surely, 2^23898545 is an apocalyptic number.

It is an amenable number.

23898545 is a deficient number, since it is larger than the sum of its proper divisors (7514767).

23898545 is a wasteful number, since it uses less digits than its factorization.

23898545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792.

The product of its digits is 345600, while the sum is 44.

The square root of 23898545 is about 4888.6138117057. The cubic root of 23898545 is about 288.0428860068.

The spelling of 23898545 in words is "twenty-three million, eight hundred ninety-eight thousand, five hundred forty-five".