427764249 has 48 divisors (see below), whose sum is σ = 694137600. Its totient is φ = 251623680.

The previous prime is 427764203. The next prime is 427764307. The reversal of 427764249 is 942467724.

It is not a de Polignac number, because 427764249 - 2⁷ = 427764121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427764049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 692989 + ... + 693605.

It is an arithmetic number, because the mean of its divisors is an integer number (14461200).

Almost surely, 2^427764249 is an apocalyptic number.

It is an amenable number.

427764249 is a deficient number, since it is larger than the sum of its proper divisors (266373351).

427764249 is a wasteful number, since it uses less digits than its factorization.

427764249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 827 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 427764249 is about 20682.4623534046. The cubic root of 427764249 is about 753.4738106778.

The spelling of 427764249 in words is "four hundred twenty-seven million, seven hundred sixty-four thousand, two hundred forty-nine".