881004947 has 2 divisors, whose sum is σ = 881004948. Its totient is φ = 881004946.

The previous prime is 881004913. The next prime is 881004997. The reversal of 881004947 is 749400188.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 881004947 - 2¹⁰ = 881003923 is a prime.

It is equal to p_45087917 and since 881004947 and 45087917 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (881004997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440502473 + 440502474.

It is an arithmetic number, because the mean of its divisors is an integer number (440502474).

Almost surely, 2^881004947 is an apocalyptic number.

881004947 is a deficient number, since it is larger than the sum of its proper divisors (1).

881004947 is an equidigital number, since it uses as much as digits as its factorization.

881004947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 881004947 is about 29681.7274935271. The cubic root of 881004947 is about 958.6486146883.

The spelling of 881004947 in words is "eight hundred eighty-one million, four thousand, nine hundred forty-seven".