85446515 has 32 divisors (see below), whose sum is σ = 134576640. Its totient is φ = 50457600.

The previous prime is 85446511. The next prime is 85446533. The reversal of 85446515 is 51564458.

It is a happy number.

It is not a de Polignac number, because 85446515 - 2² = 85446511 is a prime.

It is a super-2 number, since 2×85446515² = 14602213851290450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85446511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1475 + ... + 13155.

It is an arithmetic number, because the mean of its divisors is an integer number (4205520).

Almost surely, 2^85446515 is an apocalyptic number.

85446515 is a deficient number, since it is larger than the sum of its proper divisors (49130125).

85446515 is a wasteful number, since it uses less digits than its factorization.

85446515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11723.

The product of its digits is 96000, while the sum is 38.

The square root of 85446515 is about 9243.7284144440. The cubic root of 85446515 is about 440.4515251257.

The spelling of 85446515 in words is "eighty-five million, four hundred forty-six thousand, five hundred fifteen".