74691 has 12 divisors (see below), whose sum is σ = 110968. Its totient is φ = 48384.

The previous prime is 74687. The next prime is 74699. The reversal of 74691 is 19647.

74691 is a nontrivial binomial coefficient, being equal to C(387, 2).

It is not a de Polignac number, because 74691 - 2² = 74687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291 + ... + 483.

2⁷⁴⁶⁹¹ is an apocalyptic number.

74691 is the 386-th triangular number.

74691 is a deficient number, since it is larger than the sum of its proper divisors (36277).

74691 is a wasteful number, since it uses less digits than its factorization.

74691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 239 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 74691 is about 273.2965422394. The cubic root of 74691 is about 42.1136378353.

The spelling of 74691 in words is "seventy-four thousand, six hundred ninety-one".