47438837 has 2 divisors, whose sum is σ = 47438838. Its totient is φ = 47438836.

The previous prime is 47438827. The next prime is 47438843. The reversal of 47438837 is 73883474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46594276 + 844561 = 6826^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 47438837 - 2¹⁸ = 47176693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47438827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23719418 + 23719419.

It is an arithmetic number, because the mean of its divisors is an integer number (23719419).

Almost surely, 2^47438837 is an apocalyptic number.

It is an amenable number.

47438837 is a deficient number, since it is larger than the sum of its proper divisors (1).

47438837 is an equidigital number, since it uses as much as digits as its factorization.

47438837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 44.

The square root of 47438837 is about 6887.5857163450. The cubic root of 47438837 is about 362.0023121857.

The spelling of 47438837 in words is "forty-seven million, four hundred thirty-eight thousand, eight hundred thirty-seven".