74016989 has 8 divisors (see below), whose sum is σ = 78000000. Its totient is φ = 70042752.

The previous prime is 74016979. The next prime is 74017033. The reversal of 74016989 is 98961047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74016989 - 2¹² = 74012893 is a prime.

It is a super-2 number, since 2×74016989² = 10957029321252242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74016949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22172 + ... + 25290.

It is an arithmetic number, because the mean of its divisors is an integer number (9750000).

Almost surely, 2^74016989 is an apocalyptic number.

It is an amenable number.

74016989 is a deficient number, since it is larger than the sum of its proper divisors (3983011).

74016989 is a wasteful number, since it uses less digits than its factorization.

74016989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 74016989 is about 8603.3126759406. The cubic root of 74016989 is about 419.8657715432.

The spelling of 74016989 in words is "seventy-four million, sixteen thousand, nine hundred eighty-nine".