74497 has 8 divisors (see below), whose sum is σ = 80640. Its totient is φ = 68640.

The previous prime is 74489. The next prime is 74507. The reversal of 74497 is 79447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74497 - 2³ = 74489 is a prime.

It is a Duffinian number.

74497 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904 + ... + 982.

It is an arithmetic number, because the mean of its divisors is an integer number (10080).

2⁷⁴⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

74497 is a deficient number, since it is larger than the sum of its proper divisors (6143).

74497 is a wasteful number, since it uses less digits than its factorization.

74497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143.

The product of its digits is 7056, while the sum is 31.

The square root of 74497 is about 272.9413856490. The cubic root of 74497 is about 42.0771446857.

Subtracting 74497 from its reverse (79447), we obtain a triangular number (4950 = T₉₉).

It can be divided in two parts, 744 and 97, that added together give a square (841 = 29²).

The spelling of 74497 in words is "seventy-four thousand, four hundred ninety-seven".