31043427 has 8 divisors (see below), whose sum is σ = 42818640. Its totient is φ = 19981920.

The previous prime is 31043417. The next prime is 31043443. The reversal of 31043427 is 72434013.

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

It is not a de Polignac number, because 31043427 - 2¹¹ = 31041379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31043397 and 31043406.

It is not an unprimeable number, because it can be changed into a prime (31043417) 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, 178324 + ... + 178497.

It is an arithmetic number, because the mean of its divisors is an integer number (5352330).

Almost surely, 2^31043427 is an apocalyptic number.

31043427 is a deficient number, since it is larger than the sum of its proper divisors (11775213).

31043427 is a wasteful number, since it uses less digits than its factorization.

31043427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356853.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 31043427 is about 5571.6628577113. The cubic root of 31043427 is about 314.2846857601.

The spelling of 31043427 in words is "thirty-one million, forty-three thousand, four hundred twenty-seven".