85948091 has 2 divisors, whose sum is σ = 85948092. Its totient is φ = 85948090.

The previous prime is 85948067. The next prime is 85948147. The reversal of 85948091 is 19084958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85948091 - 2¹⁴ = 85931707 is a prime.

It is equal to p_4995638 and since 85948091 and 4995638 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (85948061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42974045 + 42974046.

It is an arithmetic number, because the mean of its divisors is an integer number (42974046).

Almost surely, 2^85948091 is an apocalyptic number.

85948091 is a deficient number, since it is larger than the sum of its proper divisors (1).

85948091 is an equidigital number, since it uses as much as digits as its factorization.

85948091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 85948091 is about 9270.8193273302. The cubic root of 85948091 is about 441.3116696168.

The spelling of 85948091 in words is "eighty-five million, nine hundred forty-eight thousand, ninety-one".