74370173 has 2 divisors, whose sum is σ = 74370174. Its totient is φ = 74370172.

The previous prime is 74370167. The next prime is 74370193. The reversal of 74370173 is 37107347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73994404 + 375769 = 8602^2 + 613^2 .

It is a cyclic number.

It is not a de Polignac number, because 74370173 - 2¹² = 74366077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74370113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37185086 + 37185087.

It is an arithmetic number, because the mean of its divisors is an integer number (37185087).

Almost surely, 2^74370173 is an apocalyptic number.

It is an amenable number.

74370173 is a deficient number, since it is larger than the sum of its proper divisors (1).

74370173 is an equidigital number, since it uses as much as digits as its factorization.

74370173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 74370173 is about 8623.8142953104. The cubic root of 74370173 is about 420.5325312286.

The spelling of 74370173 in words is "seventy-four million, three hundred seventy thousand, one hundred seventy-three".