86430557 has 8 divisors (see below), whose sum is σ = 88943712. Its totient is φ = 83926800.

The previous prime is 86430551. The next prime is 86430581. The reversal of 86430557 is 75503468.

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

It is a cyclic number.

It is not a de Polignac number, because 86430557 - 2¹⁸ = 86168413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86430557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86430551) 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, 19082 + ... + 23172.

It is an arithmetic number, because the mean of its divisors is an integer number (11117964).

Almost surely, 2^86430557 is an apocalyptic number.

It is an amenable number.

86430557 is a deficient number, since it is larger than the sum of its proper divisors (2513155).

86430557 is a wasteful number, since it uses less digits than its factorization.

86430557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 86430557 is about 9296.8035904821. The cubic root of 86430557 is about 442.1358908007.

The spelling of 86430557 in words is "eighty-six million, four hundred thirty thousand, five hundred fifty-seven".