77527133 has 2 divisors, whose sum is σ = 77527134. Its totient is φ = 77527132.

The previous prime is 77527129. The next prime is 77527139. The reversal of 77527133 is 33172577.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66945124 + 10582009 = 8182^2 + 3253^2 .

It is a cyclic number.

It is not a de Polignac number, because 77527133 - 2² = 77527129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77527093 and 77527102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77527139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38763566 + 38763567.

It is an arithmetic number, because the mean of its divisors is an integer number (38763567).

Almost surely, 2^77527133 is an apocalyptic number.

It is an amenable number.

77527133 is a deficient number, since it is larger than the sum of its proper divisors (1).

77527133 is an equidigital number, since it uses as much as digits as its factorization.

77527133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30870, while the sum is 35.

The square root of 77527133 is about 8804.9493468163. The cubic root of 77527133 is about 426.4006989729.

The spelling of 77527133 in words is "seventy-seven million, five hundred twenty-seven thousand, one hundred thirty-three".