86437801 has 2 divisors, whose sum is σ = 86437802. Its totient is φ = 86437800.

The previous prime is 86437787. The next prime is 86437807. The reversal of 86437801 is 10873468.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86211225 + 226576 = 9285^2 + 476^2 .

It is a cyclic number.

It is not a de Polignac number, because 86437801 - 2¹¹ = 86435753 is a prime.

It is not a weakly prime, because it can be changed into another prime (86437807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43218900 + 43218901.

It is an arithmetic number, because the mean of its divisors is an integer number (43218901).

Almost surely, 2^86437801 is an apocalyptic number.

It is an amenable number.

86437801 is a deficient number, since it is larger than the sum of its proper divisors (1).

86437801 is an equidigital number, since it uses as much as digits as its factorization.

86437801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 86437801 is about 9297.1931785889. The cubic root of 86437801 is about 442.1482426935.

The spelling of 86437801 in words is "eighty-six million, four hundred thirty-seven thousand, eight hundred one".