74445715 has 4 divisors (see below), whose sum is σ = 89334864. Its totient is φ = 59556568.

The previous prime is 74445691. The next prime is 74445719. The reversal of 74445715 is 51754447.

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

It is a cyclic number.

It is not a de Polignac number, because 74445715 - 2¹³ = 74437523 is a prime.

It is a super-2 number, since 2×74445715² = 11084328963722450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74445719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7444567 + ... + 7444576.

It is an arithmetic number, because the mean of its divisors is an integer number (22333716).

Almost surely, 2^74445715 is an apocalyptic number.

74445715 is a deficient number, since it is larger than the sum of its proper divisors (14889149).

74445715 is a wasteful number, since it uses less digits than its factorization.

74445715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14889148.

The product of its digits is 78400, while the sum is 37.

The square root of 74445715 is about 8628.1930321476. The cubic root of 74445715 is about 420.6748692885.

The spelling of 74445715 in words is "seventy-four million, four hundred forty-five thousand, seven hundred fifteen".