74697985 has 4 divisors (see below), whose sum is σ = 89637588. Its totient is φ = 59758384.

The previous prime is 74697979. The next prime is 74698031. The reversal of 74697985 is 58979647.

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 21013056 + 53684929 = 4584^2 + 7327^2 .

It is a cyclic number.

It is not a de Polignac number, because 74697985 - 2¹¹ = 74695937 is a prime.

It is a Duffinian 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, 7469794 + ... + 7469803.

It is an arithmetic number, because the mean of its divisors is an integer number (22409397).

Almost surely, 2^74697985 is an apocalyptic number.

It is an amenable number.

74697985 is a deficient number, since it is larger than the sum of its proper divisors (14939603).

74697985 is a wasteful number, since it uses less digits than its factorization.

74697985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14939602.

The product of its digits is 3810240, while the sum is 55.

The square root of 74697985 is about 8642.7996042949. The cubic root of 74697985 is about 421.1495059759.

The spelling of 74697985 in words is "seventy-four million, six hundred ninety-seven thousand, nine hundred eighty-five".