427403247 has 32 divisors (see below), whose sum is σ = 602596800. Its totient is φ = 269079552.

The previous prime is 427403237. The next prime is 427403269. The reversal of 427403247 is 742304724.

It is not a de Polignac number, because 427403247 - 2¹⁰ = 427402223 is a prime.

It is a super-2 number, since 2×427403247² = 365347071092286018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427403237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1098529 + ... + 1098917.

It is an arithmetic number, because the mean of its divisors is an integer number (18831150).

Almost surely, 2^427403247 is an apocalyptic number.

427403247 is a deficient number, since it is larger than the sum of its proper divisors (175193553).

427403247 is a wasteful number, since it uses less digits than its factorization.

427403247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667.

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 427403247 is about 20673.7332622824. The cubic root of 427403247 is about 753.2617919418.

The spelling of 427403247 in words is "four hundred twenty-seven million, four hundred three thousand, two hundred forty-seven".