74977 has 4 divisors (see below), whose sum is σ = 85696. Its totient is φ = 64260.

The previous prime is 74959. The next prime is 75011. The reversal of 74977 is 77947.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77947 = 23 ⋅3389.

It is not a de Polignac number, because 74977 - 2¹⁵ = 42209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5349 + ... + 5362.

It is an arithmetic number, because the mean of its divisors is an integer number (21424).

2⁷⁴⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

74977 is a deficient number, since it is larger than the sum of its proper divisors (10719).

74977 is a wasteful number, since it uses less digits than its factorization.

74977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10718.

The product of its digits is 12348, while the sum is 34.

The square root of 74977 is about 273.8192834700. The cubic root of 74977 is about 42.1673219463.

The spelling of 74977 in words is "seventy-four thousand, nine hundred seventy-seven".