74737493 has 2 divisors, whose sum is σ = 74737494. Its totient is φ = 74737492.

The previous prime is 74737391. The next prime is 74737519. The reversal of 74737493 is 39473747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58033924 + 16703569 = 7618^2 + 4087^2 .

It is a cyclic number.

It is not a de Polignac number, because 74737493 - 2¹⁰ = 74736469 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74737693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37368746 + 37368747.

It is an arithmetic number, because the mean of its divisors is an integer number (37368747).

Almost surely, 2^74737493 is an apocalyptic number.

It is an amenable number.

74737493 is a deficient number, since it is larger than the sum of its proper divisors (1).

74737493 is an equidigital number, since it uses as much as digits as its factorization.

74737493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 44.

The square root of 74737493 is about 8645.0849041522. The cubic root of 74737493 is about 421.2237419905.

The spelling of 74737493 in words is "seventy-four million, seven hundred thirty-seven thousand, four hundred ninety-three".