427433731 has 4 divisors (see below), whose sum is σ = 438986032. Its totient is φ = 415881432.

The previous prime is 427433719. The next prime is 427433749. The reversal of 427433731 is 137334724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427433731 is a prime.

It is a super-2 number, since 2×427433731² = 365399188793160722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427433791) 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, 5776095 + ... + 5776168.

It is an arithmetic number, because the mean of its divisors is an integer number (109746508).

Almost surely, 2^427433731 is an apocalyptic number.

427433731 is a deficient number, since it is larger than the sum of its proper divisors (11552301).

427433731 is a wasteful number, since it uses less digits than its factorization.

427433731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11552300.

The product of its digits is 42336, while the sum is 34.

The square root of 427433731 is about 20674.4705131716. The cubic root of 427433731 is about 753.2797000000.

The spelling of 427433731 in words is "four hundred twenty-seven million, four hundred thirty-three thousand, seven hundred thirty-one".