85597942 has 4 divisors (see below), whose sum is σ = 128396916. Its totient is φ = 42798970.

The previous prime is 85597933. The next prime is 85597943. The reversal of 85597942 is 24979558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24979558 = 2 ⋅12489779.

It is a super-3 number, since 3×85597942³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85597943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21399484 + ... + 21399487.

It is an arithmetic number, because the mean of its divisors is an integer number (32099229).

Almost surely, 2^85597942 is an apocalyptic number.

85597942 is a deficient number, since it is larger than the sum of its proper divisors (42798974).

85597942 is a wasteful number, since it uses less digits than its factorization.

85597942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42798973.

The product of its digits is 907200, while the sum is 49.

The square root of 85597942 is about 9251.9155854342. The cubic root of 85597942 is about 440.7115587170.

The spelling of 85597942 in words is "eighty-five million, five hundred ninety-seven thousand, nine hundred forty-two".