245678723 has 4 divisors (see below), whose sum is σ = 245784288. Its totient is φ = 245573160.

The previous prime is 245678717. The next prime is 245678731. The reversal of 245678723 is 327876542.

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 245678723 - 2⁴ = 245678707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245678743) 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, 49211 + ... + 53972.

It is an arithmetic number, because the mean of its divisors is an integer number (61446072).

Almost surely, 2^245678723 is an apocalyptic number.

245678723 is a deficient number, since it is larger than the sum of its proper divisors (105565).

245678723 is a wasteful number, since it uses less digits than its factorization.

245678723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105564.

The product of its digits is 564480, while the sum is 44.

The square root of 245678723 is about 15674.1418584878. The cubic root of 245678723 is about 626.3097636069.

The spelling of 245678723 in words is "two hundred forty-five million, six hundred seventy-eight thousand, seven hundred twenty-three".