86503457 has 2 divisors, whose sum is σ = 86503458. Its totient is φ = 86503456.

The previous prime is 86503451. The next prime is 86503493. The reversal of 86503457 is 75430568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85673536 + 829921 = 9256^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 86503457 - 2¹⁴ = 86487073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86503457.

It is not a weakly prime, because it can be changed into another prime (86503451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43251728 + 43251729.

It is an arithmetic number, because the mean of its divisors is an integer number (43251729).

Almost surely, 2^86503457 is an apocalyptic number.

It is an amenable number.

86503457 is a deficient number, since it is larger than the sum of its proper divisors (1).

86503457 is an equidigital number, since it uses as much as digits as its factorization.

86503457 is an evil number, because the sum of its binary digits is even.

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

The square root of 86503457 is about 9300.7234664837. The cubic root of 86503457 is about 442.2601626240.

The spelling of 86503457 in words is "eighty-six million, five hundred three thousand, four hundred fifty-seven".