47356081 has 4 divisors (see below), whose sum is σ = 47447152. Its totient is φ = 47265012.

The previous prime is 47356039. The next prime is 47356091. The reversal of 47356081 is 18065374.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47356081 is a prime.

It is a super-2 number, since 2×47356081² = 4485196815357122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47356021) 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, 44751 + ... + 45796.

It is an arithmetic number, because the mean of its divisors is an integer number (11861788).

Almost surely, 2^47356081 is an apocalyptic number.

It is an amenable number.

47356081 is a deficient number, since it is larger than the sum of its proper divisors (91071).

47356081 is an equidigital number, since it uses as much as digits as its factorization.

47356081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91070.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 47356081 is about 6881.5754736833. The cubic root of 47356081 is about 361.7916879910.

It can be divided in two parts, 4735 and 6081, that added together give a square (10816 = 104²).

The spelling of 47356081 in words is "forty-seven million, three hundred fifty-six thousand, eighty-one".