74770047 has 40 divisors (see below), whose sum is σ = 125824512. Its totient is φ = 43837200.

The previous prime is 74770037. The next prime is 74770061. The reversal of 74770047 is 74007747.

It is not a de Polignac number, because 74770047 - 2¹¹ = 74767999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74769993 and 74770020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74770037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26268 + ... + 28974.

Almost surely, 2^74770047 is an apocalyptic number.

74770047 is a deficient number, since it is larger than the sum of its proper divisors (51054465).

74770047 is a wasteful number, since it uses less digits than its factorization.

74770047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761 (or 2752 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The square root of 74770047 is about 8646.9675031192. The cubic root of 74770047 is about 421.2848916967.

It can be divided in two parts, 747700 and 47, that added together give a palindrome (747747).

The spelling of 74770047 in words is "seventy-four million, seven hundred seventy thousand, forty-seven".