74533731 has 8 divisors (see below), whose sum is σ = 103699200. Its totient is φ = 47528712.

The previous prime is 74533727. The next prime is 74533757. The reversal of 74533731 is 13733547.

It is a happy number.

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

It is not a de Polignac number, because 74533731 - 2² = 74533727 is a prime.

It is a super-4 number, since 4×74533731⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 74533692 and 74533701.

It is not an unprimeable number, because it can be changed into a prime (74533721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540031 + ... + 540168.

It is an arithmetic number, because the mean of its divisors is an integer number (12962400).

Almost surely, 2^74533731 is an apocalyptic number.

74533731 is a deficient number, since it is larger than the sum of its proper divisors (29165469).

74533731 is a wasteful number, since it uses less digits than its factorization.

74533731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080225.

The product of its digits is 26460, while the sum is 33.

The square root of 74533731 is about 8633.2920140581. The cubic root of 74533731 is about 420.8405897604.

The spelling of 74533731 in words is "seventy-four million, five hundred thirty-three thousand, seven hundred thirty-one".