47881277 has 4 divisors (see below), whose sum is σ = 47905596. Its totient is φ = 47856960.

The previous prime is 47881271. The next prime is 47881303. The reversal of 47881277 is 77218874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77218874 = 2 ⋅38609437.

It can be written as a sum of positive squares in 2 ways, for example, as 35868121 + 12013156 = 5989^2 + 3466^2 .

It is a cyclic number.

It is not a de Polignac number, because 47881277 - 2⁶ = 47881213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47881271) 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, 8918 + ... + 13239.

It is an arithmetic number, because the mean of its divisors is an integer number (11976399).

Almost surely, 2^47881277 is an apocalyptic number.

It is an amenable number.

47881277 is a deficient number, since it is larger than the sum of its proper divisors (24319).

47881277 is a wasteful number, since it uses less digits than its factorization.

47881277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24318.

The product of its digits is 175616, while the sum is 44.

The square root of 47881277 is about 6919.6298311398. The cubic root of 47881277 is about 363.1242406246.

The spelling of 47881277 in words is "forty-seven million, eight hundred eighty-one thousand, two hundred seventy-seven".