74272573 has 2 divisors, whose sum is σ = 74272574. Its totient is φ = 74272572.

The previous prime is 74272537. The next prime is 74272591. The reversal of 74272573 is 37527247.

Together with previous prime (74272537) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74183769 + 88804 = 8613^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 74272573 - 2²⁵ = 40718141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74279573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37136286 + 37136287.

It is an arithmetic number, because the mean of its divisors is an integer number (37136287).

Almost surely, 2^74272573 is an apocalyptic number.

It is an amenable number.

74272573 is a deficient number, since it is larger than the sum of its proper divisors (1).

74272573 is an equidigital number, since it uses as much as digits as its factorization.

74272573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82320, while the sum is 37.

The square root of 74272573 is about 8618.1536885809. The cubic root of 74272573 is about 420.3484881675.

It can be divided in two parts, 7427 and 2573, that added together give a 4-th power (10000 = 10⁴).

The spelling of 74272573 in words is "seventy-four million, two hundred seventy-two thousand, five hundred seventy-three".