74690293 has 2 divisors, whose sum is σ = 74690294. Its totient is φ = 74690292.

The previous prime is 74690281. The next prime is 74690381. The reversal of 74690293 is 39209647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74528689 + 161604 = 8633^2 + 402^2 .

It is an emirp because it is prime and its reverse (39209647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74690293 - 2⁵ = 74690261 is a prime.

It is equal to p_4377199 and since 74690293 and 4377199 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74690263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37345146 + 37345147.

It is an arithmetic number, because the mean of its divisors is an integer number (37345147).

Almost surely, 2^74690293 is an apocalyptic number.

It is an amenable number.

74690293 is a deficient number, since it is larger than the sum of its proper divisors (1).

74690293 is an equidigital number, since it uses as much as digits as its factorization.

74690293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 74690293 is about 8642.3545981405. The cubic root of 74690293 is about 421.1350495699.

The spelling of 74690293 in words is "seventy-four million, six hundred ninety thousand, two hundred ninety-three".