1028456077 has 12 divisors (see below), whose sum is σ = 1134349020. Its totient is φ = 931736960.

The previous prime is 1028456059. The next prime is 1028456083. The reversal of 1028456077 is 7706548201.

It can be written as a sum of positive squares in 2 ways, for example, as 578210116 + 450245961 = 24046^2 + 21219^2 .

It is not a de Polignac number, because 1028456077 - 2⁷ = 1028455949 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 (1028450077) 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 11 ways as a sum of consecutive naturals, for example, 20949 + ... + 49957.

It is an arithmetic number, because the mean of its divisors is an integer number (94529085).

Almost surely, 2^1028456077 is an apocalyptic number.

It is an amenable number.

1028456077 is a deficient number, since it is larger than the sum of its proper divisors (105892943).

1028456077 is a wasteful number, since it uses less digits than its factorization.

1028456077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29324 (or 29313 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1028456077 is about 32069.5506204873. The cubic root of 1028456077 is about 1009.3967828941.

The spelling of 1028456077 in words is "one billion, twenty-eight million, four hundred fifty-six thousand, seventy-seven".