74323453 has 2 divisors, whose sum is σ = 74323454. Its totient is φ = 74323452.

The previous prime is 74323451. The next prime is 74323463. The reversal of 74323453 is 35432347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72369049 + 1954404 = 8507^2 + 1398^2 .

It is a cyclic number.

It is not a de Polignac number, because 74323453 - 2¹ = 74323451 is a prime.

Together with 74323451, 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 (74323451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37161726 + 37161727.

It is an arithmetic number, because the mean of its divisors is an integer number (37161727).

Almost surely, 2^74323453 is an apocalyptic number.

It is an amenable number.

74323453 is a deficient number, since it is larger than the sum of its proper divisors (1).

74323453 is an equidigital number, since it uses as much as digits as its factorization.

74323453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 31.

The square root of 74323453 is about 8621.1050915761. The cubic root of 74323453 is about 420.4444520310. Note that the first 4 decimals are identical.

The spelling of 74323453 in words is "seventy-four million, three hundred twenty-three thousand, four hundred fifty-three".