87286501 has 2 divisors, whose sum is σ = 87286502. Its totient is φ = 87286500.

The previous prime is 87286489. The next prime is 87286519. The reversal of 87286501 is 10568278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51466276 + 35820225 = 7174^2 + 5985^2 .

It is a cyclic number.

It is not a de Polignac number, because 87286501 - 2⁵ = 87286469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87286531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43643250 + 43643251.

It is an arithmetic number, because the mean of its divisors is an integer number (43643251).

Almost surely, 2^87286501 is an apocalyptic number.

It is an amenable number.

87286501 is a deficient number, since it is larger than the sum of its proper divisors (1).

87286501 is an equidigital number, since it uses as much as digits as its factorization.

87286501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 87286501 is about 9342.7244955634. The cubic root of 87286501 is about 443.5906275267.

The spelling of 87286501 in words is "eighty-seven million, two hundred eighty-six thousand, five hundred one".