74612749 has 8 divisors (see below), whose sum is σ = 75267360. Its totient is φ = 73961136.

The previous prime is 74612731. The next prime is 74612773. The reversal of 74612749 is 94721647.

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 74612749 - 2¹⁷ = 74481677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74612719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93219 + ... + 94015.

It is an arithmetic number, because the mean of its divisors is an integer number (9408420).

Almost surely, 2^74612749 is an apocalyptic number.

It is an amenable number.

74612749 is a deficient number, since it is larger than the sum of its proper divisors (654611).

74612749 is a wasteful number, since it uses less digits than its factorization.

74612749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499.

The product of its digits is 84672, while the sum is 40.

The square root of 74612749 is about 8637.8671557277. The cubic root of 74612749 is about 420.9892572904.

The spelling of 74612749 in words is "seventy-four million, six hundred twelve thousand, seven hundred forty-nine".