8401884943 has 16 divisors (see below), whose sum is σ = 8808349536. Its totient is φ = 8006402560.

The previous prime is 8401884859. The next prime is 8401884947. The reversal of 8401884943 is 3494881048.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8401884943 - 2²¹ = 8399787791 is a prime.

It is a super-2 number, since 2×8401884943² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8401884947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484755 + ... + 501787.

It is an arithmetic number, because the mean of its divisors is an integer number (550521846).

Almost surely, 2^8401884943 is an apocalyptic number.

8401884943 is a deficient number, since it is larger than the sum of its proper divisors (406464593).

8401884943 is a wasteful number, since it uses less digits than its factorization.

8401884943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17354.

The product of its (nonzero) digits is 884736, while the sum is 49.

The square root of 8401884943 is about 91661.7965294157. The cubic root of 8401884943 is about 2032.9447537814.

The spelling of 8401884943 in words is "eight billion, four hundred one million, eight hundred eighty-four thousand, nine hundred forty-three".