474947729 has 4 divisors (see below), whose sum is σ = 479558976. Its totient is φ = 470336484.

The previous prime is 474947659. The next prime is 474947743. The reversal of 474947729 is 927749474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474947729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (474947749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2305469 + ... + 2305674.

It is an arithmetic number, because the mean of its divisors is an integer number (119889744).

Almost surely, 2^474947729 is an apocalyptic number.

It is an amenable number.

474947729 is a deficient number, since it is larger than the sum of its proper divisors (4611247).

474947729 is a wasteful number, since it uses less digits than its factorization.

474947729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611246.

The product of its digits is 3556224, while the sum is 53.

The square root of 474947729 is about 21793.2955057284. The cubic root of 474947729 is about 780.2167538086.

The spelling of 474947729 in words is "four hundred seventy-four million, nine hundred forty-seven thousand, seven hundred twenty-nine".