74162089 has 4 divisors (see below), whose sum is σ = 74182356. Its totient is φ = 74141824.

The previous prime is 74162059. The next prime is 74162093. The reversal of 74162089 is 98026147.

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 49112064 + 25050025 = 7008^2 + 5005^2 .

It is a cyclic number.

It is not a de Polignac number, because 74162089 - 2¹¹ = 74160041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74162059) 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, 2944 + ... + 12529.

It is an arithmetic number, because the mean of its divisors is an integer number (18545589).

Almost surely, 2^74162089 is an apocalyptic number.

It is an amenable number.

74162089 is a deficient number, since it is larger than the sum of its proper divisors (20267).

74162089 is a wasteful number, since it uses less digits than its factorization.

74162089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20266.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 74162089 is about 8611.7413453958. The cubic root of 74162089 is about 420.1399552476.

The spelling of 74162089 in words is "seventy-four million, one hundred sixty-two thousand, eighty-nine".