74668633 has 4 divisors (see below), whose sum is σ = 80412388. Its totient is φ = 68924880.

The previous prime is 74668621. The next prime is 74668637. The reversal of 74668633 is 33686647.

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 42994249 + 31674384 = 6557^2 + 5628^2 .

It is a cyclic number.

It is not a de Polignac number, because 74668633 - 2¹³ = 74660441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74668633.

It is not an unprimeable number, because it can be changed into a prime (74668637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2871858 + ... + 2871883.

It is an arithmetic number, because the mean of its divisors is an integer number (20103097).

Almost surely, 2^74668633 is an apocalyptic number.

It is an amenable number.

74668633 is a deficient number, since it is larger than the sum of its proper divisors (5743755).

74668633 is a wasteful number, since it uses less digits than its factorization.

74668633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5743754.

The product of its digits is 435456, while the sum is 43.

The square root of 74668633 is about 8641.1013765607. The cubic root of 74668633 is about 421.0943362602.

The spelling of 74668633 in words is "seventy-four million, six hundred sixty-eight thousand, six hundred thirty-three".