1046423881 has 2 divisors, whose sum is σ = 1046423882. Its totient is φ = 1046423880.

The previous prime is 1046423867. The next prime is 1046423909. The reversal of 1046423881 is 1883246401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 822771856 + 223652025 = 28684^2 + 14955^2 .

It is an emirp because it is prime and its reverse (1883246401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1046423881 is a prime.

It is a super-2 number, since 2×1046423881² = 2190005877454204322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1046423881.

It is not a weakly prime, because it can be changed into another prime (1046423281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523211940 + 523211941.

It is an arithmetic number, because the mean of its divisors is an integer number (523211941).

Almost surely, 2^1046423881 is an apocalyptic number.

It is an amenable number.

1046423881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1046423881 is an equidigital number, since it uses as much as digits as its factorization.

1046423881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 1046423881 is about 32348.4757137025. The cubic root of 1046423881 is about 1015.2411540855.

The spelling of 1046423881 in words is "one billion, forty-six million, four hundred twenty-three thousand, eight hundred eighty-one".