427611311 has 4 divisors (see below), whose sum is σ = 436709472. Its totient is φ = 418513152.

The previous prime is 427611299. The next prime is 427611329. The reversal of 427611311 is 113116724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427611311 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 (427611341) 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, 4549010 + ... + 4549103.

It is an arithmetic number, because the mean of its divisors is an integer number (109177368).

Almost surely, 2^427611311 is an apocalyptic number.

427611311 is a deficient number, since it is larger than the sum of its proper divisors (9098161).

427611311 is an equidigital number, since it uses as much as digits as its factorization.

427611311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9098160.

The product of its digits is 1008, while the sum is 26.

The square root of 427611311 is about 20678.7647358347. The cubic root of 427611311 is about 753.3840038010.

The spelling of 427611311 in words is "four hundred twenty-seven million, six hundred eleven thousand, three hundred eleven".