1028947741 has 4 divisors (see below), whose sum is σ = 1029076000. Its totient is φ = 1028819484.

The previous prime is 1028947727. The next prime is 1028947747. The reversal of 1028947741 is 1477498201.

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 not a de Polignac number, because 1028947741 - 2⁵ = 1028947709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028947747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51231 + ... + 68428.

It is an arithmetic number, because the mean of its divisors is an integer number (257269000).

Almost surely, 2^1028947741 is an apocalyptic number.

It is an amenable number.

1028947741 is a deficient number, since it is larger than the sum of its proper divisors (128259).

1028947741 is an equidigital number, since it uses as much as digits as its factorization.

1028947741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128258.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 1028947741 is about 32077.2152937252. The cubic root of 1028947741 is about 1009.5576081049.

The spelling of 1028947741 in words is "one billion, twenty-eight million, nine hundred forty-seven thousand, seven hundred forty-one".