80667523 has 2 divisors, whose sum is σ = 80667524. Its totient is φ = 80667522.

The previous prime is 80667493. The next prime is 80667529. The reversal of 80667523 is 32576608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80667523 - 2¹³ = 80659331 is a prime.

It is not a weakly prime, because it can be changed into another prime (80667529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40333761 + 40333762.

It is an arithmetic number, because the mean of its divisors is an integer number (40333762).

Almost surely, 2^80667523 is an apocalyptic number.

80667523 is a deficient number, since it is larger than the sum of its proper divisors (1).

80667523 is an equidigital number, since it uses as much as digits as its factorization.

80667523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 80667523 is about 8981.5100623448. The cubic root of 80667523 is about 432.0820656707.

The spelling of 80667523 in words is "eighty million, six hundred sixty-seven thousand, five hundred twenty-three".