47003731 has 2 divisors, whose sum is σ = 47003732. Its totient is φ = 47003730.

The previous prime is 47003729. The next prime is 47003767. The reversal of 47003731 is 13730074.

It is a happy number.

47003731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47003731 - 2¹ = 47003729 is a prime.

It is a super-2 number, since 2×47003731² = 4418701455840722, which contains 22 as substring.

Together with 47003729, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 47003696 and 47003705.

It is not a weakly prime, because it can be changed into another prime (47003711) 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 as a sum of consecutive naturals, namely, 23501865 + 23501866.

It is an arithmetic number, because the mean of its divisors is an integer number (23501866).

Almost surely, 2^47003731 is an apocalyptic number.

47003731 is a deficient number, since it is larger than the sum of its proper divisors (1).

47003731 is an equidigital number, since it uses as much as digits as its factorization.

47003731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 47003731 is about 6855.9267061426. The cubic root of 47003731 is about 360.8921570733.

The spelling of 47003731 in words is "forty-seven million, three thousand, seven hundred thirty-one".