86790001 has 2 divisors, whose sum is σ = 86790002. Its totient is φ = 86790000.

The previous prime is 86789999. The next prime is 86790023. The reversal of 86790001 is 10009768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84658401 + 2131600 = 9201^2 + 1460^2 .

It is a cyclic number.

It is not a de Polignac number, because 86790001 - 2¹ = 86789999 is a prime.

Together with 86789999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86790031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43395000 + 43395001.

It is an arithmetic number, because the mean of its divisors is an integer number (43395001).

Almost surely, 2^86790001 is an apocalyptic number.

It is an amenable number.

86790001 is a deficient number, since it is larger than the sum of its proper divisors (1).

86790001 is an equidigital number, since it uses as much as digits as its factorization.

86790001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 86790001 is about 9316.1151238056. The cubic root of 86790001 is about 442.7479555555.

Adding to 86790001 its reverse (10009768), we get a palindrome (96799769).

The spelling of 86790001 in words is "eighty-six million, seven hundred ninety thousand, one".