86557403 has 4 divisors (see below), whose sum is σ = 86929128. Its totient is φ = 86185680.

The previous prime is 86557399. The next prime is 86557411. The reversal of 86557403 is 30475568.

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

It is a cyclic number.

It is not a de Polignac number, because 86557403 - 2² = 86557399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86557423) by changing a digit.

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, 185513 + ... + 185978.

It is an arithmetic number, because the mean of its divisors is an integer number (21732282).

Almost surely, 2^86557403 is an apocalyptic number.

86557403 is a deficient number, since it is larger than the sum of its proper divisors (371725).

86557403 is a wasteful number, since it uses less digits than its factorization.

86557403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371724.

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

The square root of 86557403 is about 9303.6231114550. The cubic root of 86557403 is about 442.3520788307.

The spelling of 86557403 in words is "eighty-six million, five hundred fifty-seven thousand, four hundred three".