85698642 has 16 divisors (see below), whose sum is σ = 173746080. Its totient is φ = 28174752.

The previous prime is 85698617. The next prime is 85698653. The reversal of 85698642 is 24689658.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 85698591 and 85698600.

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, 97392 + ... + 98267.

It is an arithmetic number, because the mean of its divisors is an integer number (10859130).

Almost surely, 2^85698642 is an apocalyptic number.

85698642 is an abundant number, since it is smaller than the sum of its proper divisors (88047438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85698642 is a wasteful number, since it uses less digits than its factorization.

85698642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195737.

The product of its digits is 829440, while the sum is 48.

The square root of 85698642 is about 9257.3561020412. The cubic root of 85698642 is about 440.8843131124.

The spelling of 85698642 in words is "eighty-five million, six hundred ninety-eight thousand, six hundred forty-two".