427309589 has 8 divisors (see below), whose sum is σ = 488911488. Its totient is φ = 365847120.

The previous prime is 427309579. The next prime is 427309591. The reversal of 427309589 is 985903724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 427309589 - 2¹² = 427305493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427309579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28202 + ... + 40619.

It is an arithmetic number, because the mean of its divisors is an integer number (61113936).

Almost surely, 2^427309589 is an apocalyptic number.

It is an amenable number.

427309589 is a deficient number, since it is larger than the sum of its proper divisors (61601899).

427309589 is an equidigital number, since it uses as much as digits as its factorization.

427309589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69715.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 427309589 is about 20671.4679933477. The cubic root of 427309589 is about 753.2067665084.

The spelling of 427309589 in words is "four hundred twenty-seven million, three hundred nine thousand, five hundred eighty-nine".