74954781 has 24 divisors (see below), whose sum is σ = 122062080. Its totient is φ = 45425160.

The previous prime is 74954767. The next prime is 74954833. The reversal of 74954781 is 18745947.

It is a happy number.

It is not a de Polignac number, because 74954781 - 2⁵ = 74954749 is a prime.

It is a super-3 number, since 3×74954781³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74954701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8205 + ... + 14738.

It is an arithmetic number, because the mean of its divisors is an integer number (5085920).

Almost surely, 2^74954781 is an apocalyptic number.

It is an amenable number.

74954781 is a deficient number, since it is larger than the sum of its proper divisors (47107299).

74954781 is a wasteful number, since it uses less digits than its factorization.

74954781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22974 (or 22957 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 74954781 is about 8657.6429240296. The cubic root of 74954781 is about 421.6315618748.

The spelling of 74954781 in words is "seventy-four million, nine hundred fifty-four thousand, seven hundred eighty-one".