1028695043 has 8 divisors (see below), whose sum is σ = 1054284000. Its totient is φ = 1003129920.

The previous prime is 1028695037. The next prime is 1028695081. The reversal of 1028695043 is 3405968201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1028695043 - 2⁴ = 1028695027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1028694988 and 1028695006.

It is not an unprimeable number, because it can be changed into a prime (1028695013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108146 + ... + 117272.

It is an arithmetic number, because the mean of its divisors is an integer number (131785500).

Almost surely, 2^1028695043 is an apocalyptic number.

1028695043 is a deficient number, since it is larger than the sum of its proper divisors (25588957).

1028695043 is an equidigital number, since it uses as much as digits as its factorization.

1028695043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11917.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1028695043 is about 32073.2761500911. The cubic root of 1028695043 is about 1009.4749560046.

The spelling of 1028695043 in words is "one billion, twenty-eight million, six hundred ninety-five thousand, forty-three".