775334081 has 2 divisors, whose sum is σ = 775334082. Its totient is φ = 775334080.

The previous prime is 775334051. The next prime is 775334123. The reversal of 775334081 is 180433577.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 716044081 + 59290000 = 26759^2 + 7700^2 .

It is a cyclic number.

It is not a de Polignac number, because 775334081 - 2⁶ = 775334017 is a prime.

It is a super-2 number, since 2×775334081² = 1202285874320229122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (775334051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387667040 + 387667041.

It is an arithmetic number, because the mean of its divisors is an integer number (387667041).

Almost surely, 2^775334081 is an apocalyptic number.

It is an amenable number.

775334081 is a deficient number, since it is larger than the sum of its proper divisors (1).

775334081 is an equidigital number, since it uses as much as digits as its factorization.

775334081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 775334081 is about 27844.8214395424. The cubic root of 775334081 is about 918.6772425084.

The spelling of 775334081 in words is "seven hundred seventy-five million, three hundred thirty-four thousand, eighty-one".