249344623 has 4 divisors (see below), whose sum is σ = 272012328. Its totient is φ = 226676920.

The previous prime is 249344609. The next prime is 249344629. The reversal of 249344623 is 326443942.

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 249344623 - 2⁹ = 249344111 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 (249344629) 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, 11333836 + ... + 11333857.

It is an arithmetic number, because the mean of its divisors is an integer number (68003082).

Almost surely, 2^249344623 is an apocalyptic number.

249344623 is a deficient number, since it is larger than the sum of its proper divisors (22667705).

249344623 is a wasteful number, since it uses less digits than its factorization.

249344623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22667704.

The product of its digits is 124416, while the sum is 37.

The square root of 249344623 is about 15790.6498599646. The cubic root of 249344623 is about 629.4095610292.

The spelling of 249344623 in words is "two hundred forty-nine million, three hundred forty-four thousand, six hundred twenty-three".