6473881 has 2 divisors, whose sum is σ = 6473882. Its totient is φ = 6473880.

The previous prime is 6473867. The next prime is 6473891. The reversal of 6473881 is 1883746.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4995225 + 1478656 = 2235^2 + 1216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6473881 is a prime.

It is a super-2 number, since 2×6473881² = 83822270404322, 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 6473881.

It is not a weakly prime, because it can be changed into another prime (6473801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3236940 + 3236941.

It is an arithmetic number, because the mean of its divisors is an integer number (3236941).

Almost surely, 2^6473881 is an apocalyptic number.

It is an amenable number.

6473881 is a deficient number, since it is larger than the sum of its proper divisors (1).

6473881 is an equidigital number, since it uses as much as digits as its factorization.

6473881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 6473881 is about 2544.3822432960. The cubic root of 6473881 is about 186.3752492971.

The spelling of 6473881 in words is "six million, four hundred seventy-three thousand, eight hundred eighty-one".