774470747 has 4 divisors (see below), whose sum is σ = 790948896. Its totient is φ = 757992600.

The previous prime is 774470707. The next prime is 774470773. The reversal of 774470747 is 747074477.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 774470747 - 2²⁰ = 773422171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 16478101 = 774470747 / (7 + 7 + 4 + 4 + 7 + 0 + 7 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (774470707) 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 3 ways as a sum of consecutive naturals, for example, 8239004 + ... + 8239097.

It is an arithmetic number, because the mean of its divisors is an integer number (197737224).

Almost surely, 2^774470747 is an apocalyptic number.

774470747 is a deficient number, since it is larger than the sum of its proper divisors (16478149).

774470747 is a wasteful number, since it uses less digits than its factorization.

774470747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16478148.

The product of its (nonzero) digits is 1075648, while the sum is 47.

The square root of 774470747 is about 27829.3145262329. The cubic root of 774470747 is about 918.3361336962.

The spelling of 774470747 in words is "seven hundred seventy-four million, four hundred seventy thousand, seven hundred forty-seven".