427451565 has 16 divisors (see below), whose sum is σ = 702407808. Its totient is φ = 221812416.

The previous prime is 427451551. The next prime is 427451567. The reversal of 427451565 is 565154724.

It is not a de Polignac number, because 427451565 - 2⁶ = 427451501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427451567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384537 + ... + 385646.

It is an arithmetic number, because the mean of its divisors is an integer number (43900488).

Almost surely, 2^427451565 is an apocalyptic number.

It is an amenable number.

427451565 is a deficient number, since it is larger than the sum of its proper divisors (274956243).

427451565 is a wasteful number, since it uses less digits than its factorization.

427451565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770228.

The product of its digits is 168000, while the sum is 39.

The square root of 427451565 is about 20674.9018135516. The cubic root of 427451565 is about 753.2901763244.

The spelling of 427451565 in words is "four hundred twenty-seven million, four hundred fifty-one thousand, five hundred sixty-five".