427831493 has 8 divisors (see below), whose sum is σ = 452616000. Its totient is φ = 403273728.

The previous prime is 427831477. The next prime is 427831541. The reversal of 427831493 is 394138724.

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 427831493 - 2⁴ = 427831477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 427831493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427831463) 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, 52796 + ... + 60357.

It is an arithmetic number, because the mean of its divisors is an integer number (56577000).

Almost surely, 2^427831493 is an apocalyptic number.

It is an amenable number.

427831493 is a deficient number, since it is larger than the sum of its proper divisors (24784507).

427831493 is a wasteful number, since it uses less digits than its factorization.

427831493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113371.

The product of its digits is 145152, while the sum is 41.

The square root of 427831493 is about 20684.0879180108. The cubic root of 427831493 is about 753.5132903199.

The spelling of 427831493 in words is "four hundred twenty-seven million, eight hundred thirty-one thousand, four hundred ninety-three".