427300031 has 4 divisors (see below), whose sum is σ = 429166200. Its totient is φ = 425433864.

The previous prime is 427300021. The next prime is 427300037. The reversal of 427300031 is 130003724.

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 427300031 - 2⁶ = 427299967 is a prime.

It is a super-2 number, since 2×427300031² = 365170632985201922, 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 = 427299976 and 427300012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427300037) 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, 932741 + ... + 933198.

It is an arithmetic number, because the mean of its divisors is an integer number (107291550).

Almost surely, 2^427300031 is an apocalyptic number.

427300031 is a deficient number, since it is larger than the sum of its proper divisors (1866169).

427300031 is a wasteful number, since it uses less digits than its factorization.

427300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866168.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 427300031 is about 20671.2368038296. The cubic root of 427300031 is about 753.2011505927.

Adding to 427300031 its reverse (130003724), we get a palindrome (557303755).

The spelling of 427300031 in words is "four hundred twenty-seven million, three hundred thousand, thirty-one".