74680747 has 4 divisors (see below), whose sum is σ = 77927760. Its totient is φ = 71433736.

The previous prime is 74680733. The next prime is 74680759. The reversal of 74680747 is 74708647.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74680747 - 2¹¹ = 74678699 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (74680447) 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, 1623472 + ... + 1623517.

It is an arithmetic number, because the mean of its divisors is an integer number (19481940).

Almost surely, 2^74680747 is an apocalyptic number.

74680747 is a deficient number, since it is larger than the sum of its proper divisors (3247013).

74680747 is a wasteful number, since it uses less digits than its factorization.

74680747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247012.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 74680747 is about 8641.8023004464. The cubic root of 74680747 is about 421.1171073612.

The spelling of 74680747 in words is "seventy-four million, six hundred eighty thousand, seven hundred forty-seven".