74893769 has 4 divisors (see below), whose sum is σ = 74912196. Its totient is φ = 74875344.

The previous prime is 74893759. The next prime is 74893771. The reversal of 74893769 is 96739847.

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 19465744 + 55428025 = 4412^2 + 7445^2 .

It is a cyclic number.

It is not a de Polignac number, because 74893769 - 2¹⁶ = 74828233 is a prime.

It is a super-2 number, since 2×74893769² = 11218153270050722, which contains 22 as substring.

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 74893769.

It is not an unprimeable number, because it can be changed into a prime (74893759) 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, 134 + ... + 12239.

It is an arithmetic number, because the mean of its divisors is an integer number (18728049).

Almost surely, 2^74893769 is an apocalyptic number.

It is an amenable number.

74893769 is a deficient number, since it is larger than the sum of its proper divisors (18427).

74893769 is a wasteful number, since it uses less digits than its factorization.

74893769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18426.

The product of its digits is 2286144, while the sum is 53.

The square root of 74893769 is about 8654.1186148562. The cubic root of 74893769 is about 421.5171303582.

The spelling of 74893769 in words is "seventy-four million, eight hundred ninety-three thousand, seven hundred sixty-nine".