747081881 has 48 divisors (see below), whose sum is σ = 1043400960. Its totient is φ = 526901760.

The previous prime is 747081851. The next prime is 747081887. The reversal of 747081881 is 188180747.

It is not a de Polignac number, because 747081881 - 2⁶ = 747081817 is a prime.

It is a super-2 number, since 2×747081881² = 1116262673836996322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (747081887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203936 + ... + 207566.

It is an arithmetic number, because the mean of its divisors is an integer number (21737520).

Almost surely, 2^747081881 is an apocalyptic number.

It is an amenable number.

747081881 is a deficient number, since it is larger than the sum of its proper divisors (296319079).

747081881 is a wasteful number, since it uses less digits than its factorization.

747081881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694 (or 3687 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 44.

The square root of 747081881 is about 27332.7986309489. The cubic root of 747081881 is about 907.3804150469.

The spelling of 747081881 in words is "seven hundred forty-seven million, eighty-one thousand, eight hundred eighty-one".