74751047 has 8 divisors (see below), whose sum is σ = 86830752. Its totient is φ = 63021600.

The previous prime is 74751031. The next prime is 74751101. The reversal of 74751047 is 74015747.

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 74751047 - 2⁴ = 74751031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74750998 and 74751016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74753047) 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, 87104 + ... + 87957.

It is an arithmetic number, because the mean of its divisors is an integer number (10853844).

Almost surely, 2^74751047 is an apocalyptic number.

74751047 is a deficient number, since it is larger than the sum of its proper divisors (12079705).

74751047 is a wasteful number, since it uses less digits than its factorization.

74751047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175129.

The product of its (nonzero) digits is 27440, while the sum is 35.

The square root of 74751047 is about 8645.8687822566. The cubic root of 74751047 is about 421.2492040947.

The spelling of 74751047 in words is "seventy-four million, seven hundred fifty-one thousand, forty-seven".