427745031 has 8 divisors (see below), whose sum is σ = 651801984. Its totient is φ = 244425720.

The previous prime is 427745029. The next prime is 427745039. The reversal of 427745031 is 130547724.

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

It is not a de Polignac number, because 427745031 - 2¹ = 427745029 is a prime.

It is a super-2 number, since 2×427745031² = 365931623090381922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 427744983 and 427745001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427745039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10184385 + ... + 10184426.

It is an arithmetic number, because the mean of its divisors is an integer number (81475248).

Almost surely, 2^427745031 is an apocalyptic number.

427745031 is a deficient number, since it is larger than the sum of its proper divisors (224056953).

427745031 is a wasteful number, since it uses less digits than its factorization.

427745031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20368821.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 427745031 is about 20681.9977516680. The cubic root of 427745031 is about 753.4625268328.

The spelling of 427745031 in words is "four hundred twenty-seven million, seven hundred forty-five thousand, thirty-one".