74407085 has 4 divisors (see below), whose sum is σ = 89288508. Its totient is φ = 59525664.

The previous prime is 74407043. The next prime is 74407121. The reversal of 74407085 is 58070447.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58070447 = 139 ⋅417773.

It can be written as a sum of positive squares in 2 ways, for example, as 10118761 + 64288324 = 3181^2 + 8018^2 .

It is a cyclic number.

It is not a de Polignac number, because 74407085 - 2¹⁰ = 74406061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7440704 + ... + 7440713.

It is an arithmetic number, because the mean of its divisors is an integer number (22322127).

Almost surely, 2^74407085 is an apocalyptic number.

It is an amenable number.

74407085 is a deficient number, since it is larger than the sum of its proper divisors (14881423).

74407085 is a wasteful number, since it uses less digits than its factorization.

74407085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14881422.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 74407085 is about 8625.9541501216. The cubic root of 74407085 is about 420.6020937462.

The spelling of 74407085 in words is "seventy-four million, four hundred seven thousand, eighty-five".