85630445 has 8 divisors (see below), whose sum is σ = 108801144. Its totient is φ = 64474624.

The previous prime is 85630421. The next prime is 85630451. The reversal of 85630445 is 54403658.

It can be written as a sum of positive squares in 4 ways, for example, as 20811844 + 64818601 = 4562^2 + 8051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85630445 - 2¹⁸ = 85368301 is a prime.

It is a super-2 number, since 2×85630445² = 14665146221796050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503624 + ... + 503793.

It is an arithmetic number, because the mean of its divisors is an integer number (13600143).

Almost surely, 2^85630445 is an apocalyptic number.

85630445 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85630445 is a deficient number, since it is larger than the sum of its proper divisors (23170699).

85630445 is a wasteful number, since it uses less digits than its factorization.

85630445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007439.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 85630445 is about 9253.6719738707. The cubic root of 85630445 is about 440.7673335591.

The spelling of 85630445 in words is "eighty-five million, six hundred thirty thousand, four hundred forty-five".