76528457 has 2 divisors, whose sum is σ = 76528458. Its totient is φ = 76528456.

The previous prime is 76528451. The next prime is 76528483. The reversal of 76528457 is 75482567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50965321 + 25563136 = 7139^2 + 5056^2 .

It is a cyclic number.

It is not a de Polignac number, because 76528457 - 2⁸ = 76528201 is a prime.

It is not a weakly prime, because it can be changed into another prime (76528451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38264228 + 38264229.

It is an arithmetic number, because the mean of its divisors is an integer number (38264229).

Almost surely, 2^76528457 is an apocalyptic number.

It is an amenable number.

76528457 is a deficient number, since it is larger than the sum of its proper divisors (1).

76528457 is an equidigital number, since it uses as much as digits as its factorization.

76528457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 44.

The square root of 76528457 is about 8748.0544694235. The cubic root of 76528457 is about 424.5618682091.

The spelling of 76528457 in words is "seventy-six million, five hundred twenty-eight thousand, four hundred fifty-seven".