74249293 has 2 divisors, whose sum is σ = 74249294. Its totient is φ = 74249292.

The previous prime is 74249291. The next prime is 74249323. The reversal of 74249293 is 39294247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61418569 + 12830724 = 7837^2 + 3582^2 .

It is a cyclic number.

It is not a de Polignac number, because 74249293 - 2¹ = 74249291 is a prime.

Together with 74249291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74249291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37124646 + 37124647.

It is an arithmetic number, because the mean of its divisors is an integer number (37124647).

Almost surely, 2^74249293 is an apocalyptic number.

It is an amenable number.

74249293 is a deficient number, since it is larger than the sum of its proper divisors (1).

74249293 is an equidigital number, since it uses as much as digits as its factorization.

74249293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 74249293 is about 8616.8029454085. The cubic root of 74249293 is about 420.3045655592.

The spelling of 74249293 in words is "seventy-four million, two hundred forty-nine thousand, two hundred ninety-three".