74956447 has 8 divisors (see below), whose sum is σ = 75672576. Its totient is φ = 74243832.

The previous prime is 74956421. The next prime is 74956457. The reversal of 74956447 is 74465947.

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 74956447 - 2⁷ = 74956319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74956397 and 74956406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74956457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60678 + ... + 61900.

It is an arithmetic number, because the mean of its divisors is an integer number (9459072).

Almost surely, 2^74956447 is an apocalyptic number.

74956447 is a deficient number, since it is larger than the sum of its proper divisors (716129).

74956447 is a wasteful number, since it uses less digits than its factorization.

74956447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757.

The product of its digits is 846720, while the sum is 46.

The square root of 74956447 is about 8657.7391390593. The cubic root of 74956447 is about 421.6346856826.

The spelling of 74956447 in words is "seventy-four million, nine hundred fifty-six thousand, four hundred forty-seven".