85708398 has 32 divisors (see below), whose sum is σ = 179120160. Its totient is φ = 27305600.

The previous prime is 85708393. The next prime is 85708423. The reversal of 85708398 is 89380758.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85708393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15136 + ... + 20012.

It is an arithmetic number, because the mean of its divisors is an integer number (5597505).

Almost surely, 2^85708398 is an apocalyptic number.

85708398 is an abundant number, since it is smaller than the sum of its proper divisors (93411762).

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

85708398 is a wasteful number, since it uses less digits than its factorization.

85708398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 85708398 is about 9257.8830193517. The cubic root of 85708398 is about 440.9010426818.

The spelling of 85708398 in words is "eighty-five million, seven hundred eight thousand, three hundred ninety-eight".