85320628 has 6 divisors (see below), whose sum is σ = 149311106. Its totient is φ = 42660312.

The previous prime is 85320617. The next prime is 85320647. The reversal of 85320628 is 82602358.

It can be written as a sum of positive squares in only one way, i.e., 84860944 + 459684 = 9212^2 + 678^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85320593 and 85320602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10665075 + ... + 10665082.

Almost surely, 2^85320628 is an apocalyptic number.

It is an amenable number.

85320628 is a deficient number, since it is larger than the sum of its proper divisors (63990478).

85320628 is a wasteful number, since it uses less digits than its factorization.

85320628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21330161 (or 21330159 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 85320628 is about 9236.9165850948. The cubic root of 85320628 is about 440.2351153898.

The spelling of 85320628 in words is "eighty-five million, three hundred twenty thousand, six hundred twenty-eight".