74436253 has 8 divisors (see below), whose sum is σ = 75088728. Its totient is φ = 73786944.

The previous prime is 74436247. The next prime is 74436259. The reversal of 74436253 is 35263447.

It is an interprime number because it is at equal distance from previous prime (74436247) and next prime (74436259).

It can be written as a sum of positive squares in 4 ways, for example, as 9504889 + 64931364 = 3083^2 + 8058^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74436253 - 2²¹ = 72339101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74436259) 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 in 7 ways as a sum of consecutive naturals, for example, 72975 + ... + 73987.

It is an arithmetic number, because the mean of its divisors is an integer number (9386091).

Almost surely, 2^74436253 is an apocalyptic number.

It is an amenable number.

74436253 is a deficient number, since it is larger than the sum of its proper divisors (652475).

74436253 is a wasteful number, since it uses less digits than its factorization.

74436253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583.

The product of its digits is 60480, while the sum is 34.

The square root of 74436253 is about 8627.6446959758. The cubic root of 74436253 is about 420.6570460363.

The spelling of 74436253 in words is "seventy-four million, four hundred thirty-six thousand, two hundred fifty-three".