74797047 has 16 divisors (see below), whose sum is σ = 119334880. Its totient is φ = 46028736.

The previous prime is 74797043. The next prime is 74797049. The reversal of 74797047 is 74079747.

It is not a de Polignac number, because 74797047 - 2² = 74797043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74796993 and 74797011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74797043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106198 + ... + 106899.

It is an arithmetic number, because the mean of its divisors is an integer number (7458430).

Almost surely, 2^74797047 is an apocalyptic number.

74797047 is a deficient number, since it is larger than the sum of its proper divisors (44537833).

74797047 is a wasteful number, since it uses less digits than its factorization.

74797047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213119 (or 213113 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The square root of 74797047 is about 8648.5286031787. The cubic root of 74797047 is about 421.3355952589.

The spelling of 74797047 in words is "seventy-four million, seven hundred ninety-seven thousand, forty-seven".