85413842 has 4 divisors (see below), whose sum is σ = 128120766. Its totient is φ = 42706920.

The previous prime is 85413841. The next prime is 85413857. The reversal of 85413842 is 24831458.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 84070561 + 1343281 = 9169^2 + 1159^2 .

It is not an unprimeable number, because it can be changed into a prime (85413841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21353459 + ... + 21353462.

Almost surely, 2^85413842 is an apocalyptic number.

85413842 is a deficient number, since it is larger than the sum of its proper divisors (42706924).

85413842 is a wasteful number, since it uses less digits than its factorization.

85413842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42706923.

The product of its digits is 30720, while the sum is 35.

The square root of 85413842 is about 9241.9609391081. The cubic root of 85413842 is about 440.3953780832.

The spelling of 85413842 in words is "eighty-five million, four hundred thirteen thousand, eight hundred forty-two".