47242837 has 2 divisors, whose sum is σ = 47242838. Its totient is φ = 47242836.

The previous prime is 47242829. The next prime is 47242841. The reversal of 47242837 is 73824274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 443556 = 6841^2 + 666^2 .

It is a cyclic number.

It is not a de Polignac number, because 47242837 - 2³ = 47242829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47242796 and 47242805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47242817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23621418 + 23621419.

It is an arithmetic number, because the mean of its divisors is an integer number (23621419).

Almost surely, 2^47242837 is an apocalyptic number.

It is an amenable number.

47242837 is a deficient number, since it is larger than the sum of its proper divisors (1).

47242837 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 11 representation: 47242837 = (24738274)₁₁.

47242837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 37.

The square root of 47242837 is about 6873.3424911029. The cubic root of 47242837 is about 361.5030700797.

The spelling of 47242837 in words is "forty-seven million, two hundred forty-two thousand, eight hundred thirty-seven".