427660043 has 4 divisors (see below), whose sum is σ = 429434808. Its totient is φ = 425885280.

The previous prime is 427660033. The next prime is 427660087. The reversal of 427660043 is 340066724.

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 427660043 - 2²⁰ = 426611467 is a prime.

It is a super-2 number, since 2×427660043² = 365786224757523698, 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 = 427659991 and 427660009.

It is not an unprimeable number, because it can be changed into a prime (427660033) 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, 887021 + ... + 887502.

It is an arithmetic number, because the mean of its divisors is an integer number (107358702).

Almost surely, 2^427660043 is an apocalyptic number.

427660043 is a deficient number, since it is larger than the sum of its proper divisors (1774765).

427660043 is a wasteful number, since it uses less digits than its factorization.

427660043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774764.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 427660043 is about 20679.9430124940. The cubic root of 427660043 is about 753.4126220920.

The spelling of 427660043 in words is "four hundred twenty-seven million, six hundred sixty thousand, forty-three".