74863253 has 4 divisors (see below), whose sum is σ = 76689228. Its totient is φ = 73037280.

The previous prime is 74863241. The next prime is 74863259. The reversal of 74863253 is 35236847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19166884 + 55696369 = 4378^2 + 7463^2 .

It is a cyclic number.

It is not a de Polignac number, because 74863253 - 2⁴ = 74863237 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 (74863259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912926 + ... + 913007.

It is an arithmetic number, because the mean of its divisors is an integer number (19172307).

Almost surely, 2^74863253 is an apocalyptic number.

It is an amenable number.

74863253 is a deficient number, since it is larger than the sum of its proper divisors (1825975).

74863253 is a wasteful number, since it uses less digits than its factorization.

74863253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825974.

The product of its digits is 120960, while the sum is 38.

The square root of 74863253 is about 8652.3553440667. The cubic root of 74863253 is about 421.4598725277.

The spelling of 74863253 in words is "seventy-four million, eight hundred sixty-three thousand, two hundred fifty-three".