74772673 has 4 divisors (see below), whose sum is σ = 74793348. Its totient is φ = 74752000.

The previous prime is 74772667. The next prime is 74772679. The reversal of 74772673 is 37627747.

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

It is an interprime number because it is at equal distance from previous prime (74772667) and next prime (74772679).

It can be written as a sum of positive squares in 2 ways, for example, as 68178049 + 6594624 = 8257^2 + 2568^2 .

It is a cyclic number.

It is not a de Polignac number, because 74772673 - 2²¹ = 72675521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74772679) 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, 3328 + ... + 12673.

It is an arithmetic number, because the mean of its divisors is an integer number (18698337).

Almost surely, 2^74772673 is an apocalyptic number.

It is an amenable number.

74772673 is a deficient number, since it is larger than the sum of its proper divisors (20675).

74772673 is a wasteful number, since it uses less digits than its factorization.

74772673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20674.

The product of its digits is 345744, while the sum is 43.

The square root of 74772673 is about 8647.1193469270. The cubic root of 74772673 is about 421.2898236234.

The spelling of 74772673 in words is "seventy-four million, seven hundred seventy-two thousand, six hundred seventy-three".