85744473 has 8 divisors (see below), whose sum is σ = 120343200. Its totient is φ = 54154368.

The previous prime is 85744471. The next prime is 85744487. The reversal of 85744473 is 37444758.

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

It is not a de Polignac number, because 85744473 - 2¹ = 85744471 is a prime.

It is a super-2 number, since 2×85744473² = 14704229300095458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (85744471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752088 + ... + 752201.

It is an arithmetic number, because the mean of its divisors is an integer number (15042900).

Almost surely, 2^85744473 is an apocalyptic number.

It is an amenable number.

85744473 is a deficient number, since it is larger than the sum of its proper divisors (34598727).

85744473 is a wasteful number, since it uses less digits than its factorization.

85744473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504311.

The product of its digits is 376320, while the sum is 42.

The square root of 85744473 is about 9259.8311539682. The cubic root of 85744473 is about 440.9628929962.

The spelling of 85744473 in words is "eighty-five million, seven hundred forty-four thousand, four hundred seventy-three".