74653273 has 4 divisors (see below), whose sum is σ = 79044660. Its totient is φ = 70261888.

The previous prime is 74653259. The next prime is 74653283. The reversal of 74653273 is 37235647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37235647 = 113 ⋅329519.

It can be written as a sum of positive squares in 2 ways, for example, as 40043584 + 34609689 = 6328^2 + 5883^2 .

It is a cyclic number.

It is not a de Polignac number, because 74653273 - 2⁹ = 74652761 is a prime.

It is a super-2 number, since 2×74653273² = 11146222339225058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74653213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2195668 + ... + 2195701.

It is an arithmetic number, because the mean of its divisors is an integer number (19761165).

Almost surely, 2^74653273 is an apocalyptic number.

It is an amenable number.

74653273 is a deficient number, since it is larger than the sum of its proper divisors (4391387).

74653273 is a wasteful number, since it uses less digits than its factorization.

74653273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391386.

The product of its digits is 105840, while the sum is 37.

The square root of 74653273 is about 8640.2125552558. The cubic root of 74653273 is about 421.0654600003.

The spelling of 74653273 in words is "seventy-four million, six hundred fifty-three thousand, two hundred seventy-three".