74947785 has 16 divisors (see below), whose sum is σ = 130818240. Its totient is φ = 36338240.

The previous prime is 74947783. The next prime is 74947811. The reversal of 74947785 is 58774947.

It is not a de Polignac number, because 74947785 - 2¹ = 74947783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74947783) 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, 226950 + ... + 227279.

It is an arithmetic number, because the mean of its divisors is an integer number (8176140).

Almost surely, 2^74947785 is an apocalyptic number.

It is an amenable number.

74947785 is a deficient number, since it is larger than the sum of its proper divisors (55870455).

74947785 is a wasteful number, since it uses less digits than its factorization.

74947785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454248.

The product of its digits is 1975680, while the sum is 51.

The square root of 74947785 is about 8657.2388785340. The cubic root of 74947785 is about 421.6184436270.

The spelling of 74947785 in words is "seventy-four million, nine hundred forty-seven thousand, seven hundred eighty-five".