74717761 has 4 divisors (see below), whose sum is σ = 74822400. Its totient is φ = 74613124.

The previous prime is 74717743. The next prime is 74717791. The reversal of 74717761 is 16771747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74717761 - 2⁹ = 74717249 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74717791) 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, 51241 + ... + 52678.

It is an arithmetic number, because the mean of its divisors is an integer number (18705600).

Almost surely, 2^74717761 is an apocalyptic number.

It is an amenable number.

74717761 is a deficient number, since it is larger than the sum of its proper divisors (104639).

74717761 is a wasteful number, since it uses less digits than its factorization.

74717761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104638.

The product of its digits is 57624, while the sum is 40.

The square root of 74717761 is about 8643.9436023149. The cubic root of 74717761 is about 421.1866685926.

The spelling of 74717761 in words is "seventy-four million, seven hundred seventeen thousand, seven hundred sixty-one".