166793437 has 2 divisors, whose sum is σ = 166793438. Its totient is φ = 166793436.

The previous prime is 166793377. The next prime is 166793483. The reversal of 166793437 is 734397661.

166793437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (166793483) can be obtained adding 166793437 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120362841 + 46430596 = 10971^2 + 6814^2 .

It is a cyclic number.

It is not a de Polignac number, because 166793437 - 2¹¹ = 166791389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166593437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83396718 + 83396719.

It is an arithmetic number, because the mean of its divisors is an integer number (83396719).

Almost surely, 2^166793437 is an apocalyptic number.

It is an amenable number.

166793437 is a deficient number, since it is larger than the sum of its proper divisors (1).

166793437 is an equidigital number, since it uses as much as digits as its factorization.

166793437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 46.

The square root of 166793437 is about 12914.8533479866. The cubic root of 166793437 is about 550.4607015938.

The spelling of 166793437 in words is "one hundred sixty-six million, seven hundred ninety-three thousand, four hundred thirty-seven".