1028864147 has 4 divisors (see below), whose sum is σ = 1032578736. Its totient is φ = 1025149560.

The previous prime is 1028864141. The next prime is 1028864167. The reversal of 1028864147 is 7414688201.

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 1028864147 - 2⁴ = 1028864131 is a prime.

It is a super-2 number, since 2×1028864147² = 2117122865964075218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028864141) 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, 1856879 + ... + 1857432.

It is an arithmetic number, because the mean of its divisors is an integer number (258144684).

Almost surely, 2^1028864147 is an apocalyptic number.

1028864147 is a deficient number, since it is larger than the sum of its proper divisors (3714589).

1028864147 is an equidigital number, since it uses as much as digits as its factorization.

1028864147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714588.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 1028864147 is about 32075.9122551487. The cubic root of 1028864147 is about 1009.5302677970.

The spelling of 1028864147 in words is "one billion, twenty-eight million, eight hundred sixty-four thousand, one hundred forty-seven".