86261786 has 32 divisors (see below), whose sum is σ = 150292800. Its totient is φ = 36789120.

The previous prime is 86261761. The next prime is 86261789. The reversal of 86261786 is 68716268.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86261789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18125 + ... + 22383.

It is an arithmetic number, because the mean of its divisors is an integer number (4696650).

Almost surely, 2^86261786 is an apocalyptic number.

86261786 is a deficient number, since it is larger than the sum of its proper divisors (64031014).

86261786 is a wasteful number, since it uses less digits than its factorization.

86261786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334.

The product of its digits is 193536, while the sum is 44.

The square root of 86261786 is about 9287.7223257373. The cubic root of 86261786 is about 441.8479203529.

The spelling of 86261786 in words is "eighty-six million, two hundred sixty-one thousand, seven hundred eighty-six".