74859669 has 6 divisors (see below), whose sum is σ = 108130646. Its totient is φ = 49906440.

The previous prime is 74859667. The next prime is 74859683. The reversal of 74859669 is 96695847.

74859669 is a `hidden beast` number, since 7 + 48 + 596 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 46376100 + 28483569 = 6810^2 + 5337^2 .

It is not a de Polignac number, because 74859669 - 2¹ = 74859667 is a prime.

It is a super-2 number, since 2×74859669² = 11207940085579122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74859667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4158862 + ... + 4158879.

Almost surely, 2^74859669 is an apocalyptic number.

It is an amenable number.

74859669 is a deficient number, since it is larger than the sum of its proper divisors (33270977).

74859669 is a wasteful number, since it uses less digits than its factorization.

74859669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8317747 (or 8317744 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 74859669 is about 8652.1482303530. The cubic root of 74859669 is about 421.4531467700.

The spelling of 74859669 in words is "seventy-four million, eight hundred fifty-nine thousand, six hundred sixty-nine".