427117331 has 4 divisors (see below), whose sum is σ = 427326432. Its totient is φ = 426908232.

The previous prime is 427117277. The next prime is 427117351. The reversal of 427117331 is 133711724.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 427117331 - 2⁶ = 427117267 is a prime.

It is a super-2 number, since 2×427117331² = 364858428881127122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427117294 and 427117303.

It is not an unprimeable number, because it can be changed into a prime (427117351) 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, 101456 + ... + 105581.

It is an arithmetic number, because the mean of its divisors is an integer number (106831608).

Almost surely, 2^427117331 is an apocalyptic number.

427117331 is a deficient number, since it is larger than the sum of its proper divisors (209101).

427117331 is a wasteful number, since it uses less digits than its factorization.

427117331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209100.

The product of its digits is 3528, while the sum is 29.

The square root of 427117331 is about 20666.8171473016. The cubic root of 427117331 is about 753.0937869470.

The spelling of 427117331 in words is "four hundred twenty-seven million, one hundred seventeen thousand, three hundred thirty-one".