86540501 has 2 divisors, whose sum is σ = 86540502. Its totient is φ = 86540500.

The previous prime is 86540491. The next prime is 86540527. The reversal of 86540501 is 10504568.

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., 81018001 + 5522500 = 9001^2 + 2350^2 .

It is a cyclic number.

It is not a de Polignac number, because 86540501 - 2¹⁰ = 86539477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86540581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43270250 + 43270251.

It is an arithmetic number, because the mean of its divisors is an integer number (43270251).

Almost surely, 2^86540501 is an apocalyptic number.

It is an amenable number.

86540501 is a deficient number, since it is larger than the sum of its proper divisors (1).

86540501 is an equidigital number, since it uses as much as digits as its factorization.

86540501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 86540501 is about 9302.7147113087. The cubic root of 86540501 is about 442.3232843688.

The spelling of 86540501 in words is "eighty-six million, five hundred forty thousand, five hundred one".