1028674091 has 2 divisors, whose sum is σ = 1028674092. Its totient is φ = 1028674090.

The previous prime is 1028674043. The next prime is 1028674099. The reversal of 1028674091 is 1904768201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028674091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1028674099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514337045 + 514337046.

It is an arithmetic number, because the mean of its divisors is an integer number (514337046).

Almost surely, 2^1028674091 is an apocalyptic number.

1028674091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028674091 is an equidigital number, since it uses as much as digits as its factorization.

1028674091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1028674091 is about 32072.9495213646. The cubic root of 1028674091 is about 1009.4681024468.

The spelling of 1028674091 in words is "one billion, twenty-eight million, six hundred seventy-four thousand, ninety-one".