86872001 has 2 divisors, whose sum is σ = 86872002. Its totient is φ = 86872000.

The previous prime is 86871977. The next prime is 86872003. The reversal of 86872001 is 10027868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51825601 + 35046400 = 7199^2 + 5920^2 .

It is a cyclic number.

It is not a de Polignac number, because 86872001 - 2¹⁴ = 86855617 is a prime.

It is a Sophie Germain prime.

Together with 86872003, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (86872003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43436000 + 43436001.

It is an arithmetic number, because the mean of its divisors is an integer number (43436001).

Almost surely, 2^86872001 is an apocalyptic number.

It is an amenable number.

86872001 is a deficient number, since it is larger than the sum of its proper divisors (1).

86872001 is an equidigital number, since it uses as much as digits as its factorization.

86872001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 86872001 is about 9320.5150608751. The cubic root of 86872001 is about 442.8873491264.

Adding to 86872001 its reverse (10027868), we get a palindrome (96899869).

The spelling of 86872001 in words is "eighty-six million, eight hundred seventy-two thousand, one".