86555442 has 8 divisors (see below), whose sum is σ = 173110896. Its totient is φ = 28851812.

The previous prime is 86555407. The next prime is 86555477. The reversal of 86555442 is 24455568.

It is an interprime number because it is at equal distance from previous prime (86555407) and next prime (86555477).

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

86555442 is an admirable number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 86555442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7212948 + ... + 7212959.

It is an arithmetic number, because the mean of its divisors is an integer number (21638862).

Almost surely, 2^86555442 is an apocalyptic number.

86555442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

86555442 is a wasteful number, since it uses less digits than its factorization.

86555442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14425912.

The product of its digits is 192000, while the sum is 39.

The square root of 86555442 is about 9303.5177218082. The cubic root of 86555442 is about 442.3487382384.

The spelling of 86555442 in words is "eighty-six million, five hundred fifty-five thousand, four hundred forty-two".