547976881 has 4 divisors (see below), whose sum is σ = 548062564. Its totient is φ = 547891200.

The previous prime is 547976879. The next prime is 547976927. The reversal of 547976881 is 188679745.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 379626256 + 168350625 = 19484^2 + 12975^2 .

It is a cyclic number.

It is not a de Polignac number, because 547976881 - 2¹ = 547976879 is a prime.

It is a super-2 number, since 2×547976881² = 600557324220976322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (547976831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32400 + ... + 46321.

It is an arithmetic number, because the mean of its divisors is an integer number (137015641).

Almost surely, 2^547976881 is an apocalyptic number.

It is an amenable number.

547976881 is a deficient number, since it is larger than the sum of its proper divisors (85683).

547976881 is an equidigital number, since it uses as much as digits as its factorization.

547976881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85682.

The product of its digits is 3386880, while the sum is 55.

The square root of 547976881 is about 23408.9060188638. The cubic root of 547976881 is about 818.3154396844.

The spelling of 547976881 in words is "five hundred forty-seven million, nine hundred seventy-six thousand, eight hundred eighty-one".