80697527 has 2 divisors, whose sum is σ = 80697528. Its totient is φ = 80697526.

The previous prime is 80697509. The next prime is 80697559. The reversal of 80697527 is 72579608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80697527 - 2²² = 76503223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80697577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40348763 + 40348764.

It is an arithmetic number, because the mean of its divisors is an integer number (40348764).

Almost surely, 2^80697527 is an apocalyptic number.

80697527 is a deficient number, since it is larger than the sum of its proper divisors (1).

80697527 is an equidigital number, since it uses as much as digits as its factorization.

80697527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 80697527 is about 8983.1802275141. The cubic root of 80697527 is about 432.1356294959.

The spelling of 80697527 in words is "eighty million, six hundred ninety-seven thousand, five hundred twenty-seven".