85744554 has 16 divisors (see below), whose sum is σ = 195987648. Its totient is φ = 24498432.

The previous prime is 85744517. The next prime is 85744567. The reversal of 85744554 is 45544758.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2041537 = 85744554 / (8 + 5 + 7 + 4 + 4 + 5 + 5 + 4).

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, 1020727 + ... + 1020810.

It is an arithmetic number, because the mean of its divisors is an integer number (12249228).

Almost surely, 2^85744554 is an apocalyptic number.

85744554 is an abundant number, since it is smaller than the sum of its proper divisors (110243094).

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

85744554 is a wasteful number, since it uses less digits than its factorization.

85744554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041549.

The product of its digits is 448000, while the sum is 42.

The square root of 85744554 is about 9259.8355276970. The cubic root of 85744554 is about 440.9630318505.

The spelling of 85744554 in words is "eighty-five million, seven hundred forty-four thousand, five hundred fifty-four".