427185377 has 4 divisors (see below), whose sum is σ = 428809920. Its totient is φ = 425560836.

The previous prime is 427185373. The next prime is 427185383. The reversal of 427185377 is 773581724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 427185377 - 2² = 427185373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427185373) 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, 811877 + ... + 812402.

It is an arithmetic number, because the mean of its divisors is an integer number (107202480).

Almost surely, 2^427185377 is an apocalyptic number.

It is an amenable number.

427185377 is a deficient number, since it is larger than the sum of its proper divisors (1624543).

427185377 is a wasteful number, since it uses less digits than its factorization.

427185377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624542.

The product of its digits is 329280, while the sum is 44.

The square root of 427185377 is about 20668.4633439450. The cubic root of 427185377 is about 753.1337777528.

The spelling of 427185377 in words is "four hundred twenty-seven million, one hundred eighty-five thousand, three hundred seventy-seven".