86428542 has 8 divisors (see below), whose sum is σ = 172857096. Its totient is φ = 28809512.

The previous prime is 86428499. The next prime is 86428543. The reversal of 86428542 is 24582468.

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

86428542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 86428542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86428543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7202373 + ... + 7202384.

It is an arithmetic number, because the mean of its divisors is an integer number (21607137).

Almost surely, 2^86428542 is an apocalyptic number.

86428542 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.

86428542 is a wasteful number, since it uses less digits than its factorization.

86428542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14404762.

The product of its digits is 122880, while the sum is 39.

The square root of 86428542 is about 9296.6952192701. The cubic root of 86428542 is about 442.1324548602.

The spelling of 86428542 in words is "eighty-six million, four hundred twenty-eight thousand, five hundred forty-two".