85581467 has 2 divisors, whose sum is σ = 85581468. Its totient is φ = 85581466.

The previous prime is 85581449. The next prime is 85581479. The reversal of 85581467 is 76418558.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85581467 - 2⁶ = 85581403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85584467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42790733 + 42790734.

It is an arithmetic number, because the mean of its divisors is an integer number (42790734).

Almost surely, 2^85581467 is an apocalyptic number.

85581467 is a deficient number, since it is larger than the sum of its proper divisors (1).

85581467 is an equidigital number, since it uses as much as digits as its factorization.

85581467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 268800, while the sum is 44.

The square root of 85581467 is about 9251.0251864320. The cubic root of 85581467 is about 440.6832823799.

The spelling of 85581467 in words is "eighty-five million, five hundred eighty-one thousand, four hundred sixty-seven".