775028028 has 24 divisors (see below), whose sum is σ = 1914775632. Its totient is φ = 243145984.

The previous prime is 775028027. The next prime is 775028029. The reversal of 775028028 is 820820577.

It is an interprime number because it is at equal distance from previous prime (775028027) and next prime (775028029).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775028027) 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, 1899375 + ... + 1899782.

It is an arithmetic number, because the mean of its divisors is an integer number (79782318).

Almost surely, 2^775028028 is an apocalyptic number.

It is an amenable number.

775028028 is an abundant number, since it is smaller than the sum of its proper divisors (1139747604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

775028028 is a wasteful number, since it uses less digits than its factorization.

775028028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799181 (or 3799179 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 775028028 is about 27839.3252073393. The cubic root of 775028028 is about 918.5563479863.

It can be divided in two parts, 7750 and 28028, that added together give a triangular number (35778 = T₂₆₇).

The spelling of 775028028 in words is "seven hundred seventy-five million, twenty-eight thousand, twenty-eight".