427253933 has 4 divisors (see below), whose sum is σ = 427475100. Its totient is φ = 427032768.

The previous prime is 427253929. The next prime is 427253947. The reversal of 427253933 is 339352724.

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

It can be written as a sum of positive squares in 2 ways, for example, as 178970884 + 248283049 = 13378^2 + 15757^2 .

It is a cyclic number.

It is not a de Polignac number, because 427253933 - 2² = 427253929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427253833) 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, 107660 + ... + 111557.

It is an arithmetic number, because the mean of its divisors is an integer number (106868775).

Almost surely, 2^427253933 is an apocalyptic number.

It is an amenable number.

427253933 is a deficient number, since it is larger than the sum of its proper divisors (221167).

427253933 is a wasteful number, since it uses less digits than its factorization.

427253933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221166.

The product of its digits is 136080, while the sum is 38.

The square root of 427253933 is about 20670.1217461340. The cubic root of 427253933 is about 753.1740639925.

The spelling of 427253933 in words is "four hundred twenty-seven million, two hundred fifty-three thousand, nine hundred thirty-three".