86207069 has 6 divisors (see below), whose sum is σ = 93348666. Its totient is φ = 79575600.

The previous prime is 86207057. The next prime is 86207137. The reversal of 86207069 is 96070268.

It can be written as a sum of positive squares in 3 ways, for example, as 4972900 + 81234169 = 2230^2 + 9013^2 .

It is not a de Polignac number, because 86207069 - 2¹² = 86202973 is a prime.

It is a super-2 number, since 2×86207069² = 14863317491141522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86200069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254882 + ... + 255219.

It is an arithmetic number, because the mean of its divisors is an integer number (15558111).

Almost surely, 2^86207069 is an apocalyptic number.

It is an amenable number.

86207069 is a deficient number, since it is larger than the sum of its proper divisors (7141597).

86207069 is a wasteful number, since it uses less digits than its factorization.

86207069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510127 (or 510114 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 86207069 is about 9284.7761954718. The cubic root of 86207069 is about 441.7544772521.

The spelling of 86207069 in words is "eighty-six million, two hundred seven thousand, sixty-nine".