74999885 has 4 divisors (see below), whose sum is σ = 89999868. Its totient is φ = 59999904.

The previous prime is 74999863. The next prime is 74999893. The reversal of 74999885 is 58899947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58899947 = 653 ⋅90199.

It can be written as a sum of positive squares in 2 ways, for example, as 9357481 + 65642404 = 3059^2 + 8102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74999885 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, 7499984 + ... + 7499993.

It is an arithmetic number, because the mean of its divisors is an integer number (22499967).

Almost surely, 2^74999885 is an apocalyptic number.

It is an amenable number.

74999885 is a deficient number, since it is larger than the sum of its proper divisors (14999983).

74999885 is a wasteful number, since it uses less digits than its factorization.

74999885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14999982.

The product of its digits is 6531840, while the sum is 59.

The square root of 74999885 is about 8660.2473983137. The cubic root of 74999885 is about 421.7161171069.

The spelling of 74999885 in words is "seventy-four million, nine hundred ninety-nine thousand, eight hundred eighty-five".