427824923 has 4 divisors (see below), whose sum is σ = 428925120. Its totient is φ = 426724728.

The previous prime is 427824889. The next prime is 427824937. The reversal of 427824923 is 329428724.

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 427824923 - 2²² = 423630619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427824953) 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, 549515 + ... + 550292.

It is an arithmetic number, because the mean of its divisors is an integer number (107231280).

Almost surely, 2^427824923 is an apocalyptic number.

427824923 is a deficient number, since it is larger than the sum of its proper divisors (1100197).

427824923 is a wasteful number, since it uses less digits than its factorization.

427824923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100196.

The product of its digits is 193536, while the sum is 41.

The square root of 427824923 is about 20683.9290996658. The cubic root of 427824923 is about 753.5094331878.

The spelling of 427824923 in words is "four hundred twenty-seven million, eight hundred twenty-four thousand, nine hundred twenty-three".