1047881 has 2 divisors, whose sum is σ = 1047882. Its totient is φ = 1047880.

The previous prime is 1047859. The next prime is 1047883. The reversal of 1047881 is 1887401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032256 + 15625 = 1016^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047881 - 2¹⁸ = 785737 is a prime.

It is a super-2 number, since 2×1047881² = 2196109180322, which contains 22 as substring.

Together with 1047883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1047883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523940 + 523941.

It is an arithmetic number, because the mean of its divisors is an integer number (523941).

2^1047881 is an apocalyptic number.

It is an amenable number.

1047881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047881 is an equidigital number, since it uses as much as digits as its factorization.

1047881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 1047881 is about 1023.6605882811. The cubic root of 1047881 is about 101.5712168140.

The spelling of 1047881 in words is "one million, forty-seven thousand, eight hundred eighty-one".