85106449 has 4 divisors (see below), whose sum is σ = 85132260. Its totient is φ = 85080640.

The previous prime is 85106443. The next prime is 85106467. The reversal of 85106449 is 94460158.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74511424 + 10595025 = 8632^2 + 3255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85106449 is a prime.

It is a super-2 number, since 2×85106449² = 14486215322779202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85106443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7084 + ... + 14845.

It is an arithmetic number, because the mean of its divisors is an integer number (21283065).

Almost surely, 2^85106449 is an apocalyptic number.

It is an amenable number.

85106449 is a deficient number, since it is larger than the sum of its proper divisors (25811).

85106449 is a wasteful number, since it uses less digits than its factorization.

85106449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25810.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 85106449 is about 9225.3156585561. The cubic root of 85106449 is about 439.8664350105.

The spelling of 85106449 in words is "eighty-five million, one hundred six thousand, four hundred forty-nine".