47000731 has 2 divisors, whose sum is σ = 47000732. Its totient is φ = 47000730.

The previous prime is 47000729. The next prime is 47000741. The reversal of 47000731 is 13700074.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47000731 - 2¹ = 47000729 is a prime.

It is a super-2 number, since 2×47000731² = 4418137429068722, which contains 22 as substring.

Together with 47000729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (47000741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23500365 + 23500366.

It is an arithmetic number, because the mean of its divisors is an integer number (23500366).

Almost surely, 2^47000731 is an apocalyptic number.

47000731 is a deficient number, since it is larger than the sum of its proper divisors (1).

47000731 is an equidigital number, since it uses as much as digits as its factorization.

47000731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 47000731 is about 6855.7079138481. The cubic root of 47000731 is about 360.8844789629.

It can be divided in two parts, 4700073 and 1, that added together give a palindrome (4700074).

The spelling of 47000731 in words is "forty-seven million, seven hundred thirty-one", and thus it is an aban number.