86127973 has 2 divisors, whose sum is σ = 86127974. Its totient is φ = 86127972.

The previous prime is 86127961. The next prime is 86127991. The reversal of 86127973 is 37972168.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83868964 + 2259009 = 9158^2 + 1503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86127973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86127073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43063986 + 43063987.

It is an arithmetic number, because the mean of its divisors is an integer number (43063987).

Almost surely, 2^86127973 is an apocalyptic number.

It is an amenable number.

86127973 is a deficient number, since it is larger than the sum of its proper divisors (1).

86127973 is an equidigital number, since it uses as much as digits as its factorization.

86127973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 86127973 is about 9280.5157723049. The cubic root of 86127973 is about 441.6193309342.

The spelling of 86127973 in words is "eighty-six million, one hundred twenty-seven thousand, nine hundred seventy-three".