427166293 has 4 divisors (see below), whose sum is σ = 452293740. Its totient is φ = 402038848.

The previous prime is 427166279. The next prime is 427166309. The reversal of 427166293 is 392661724.

It is a happy number.

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 139287204 + 287879089 = 11802^2 + 16967^2 .

It is not a de Polignac number, because 427166293 - 2²⁵ = 393611861 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427166203) 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, 12563698 + ... + 12563731.

It is an arithmetic number, because the mean of its divisors is an integer number (113073435).

Almost surely, 2^427166293 is an apocalyptic number.

It is an amenable number.

427166293 is a deficient number, since it is larger than the sum of its proper divisors (25127447).

427166293 is a wasteful number, since it uses less digits than its factorization.

427166293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25127446.

The product of its digits is 108864, while the sum is 40.

The square root of 427166293 is about 20668.0016692471. The cubic root of 427166293 is about 753.1225624664.

The spelling of 427166293 in words is "four hundred twenty-seven million, one hundred sixty-six thousand, two hundred ninety-three".