86749061 has 12 divisors (see below), whose sum is σ = 101446092. Its totient is φ = 73963008.

The previous prime is 86749043. The next prime is 86749081. The reversal of 86749061 is 16094768.

It can be written as a sum of positive squares in 2 ways, for example, as 9572836 + 77176225 = 3094^2 + 8785^2 .

It is not a de Polignac number, because 86749061 - 2²² = 82554757 is a prime.

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 (86749081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4871 + ... + 14043.

It is an arithmetic number, because the mean of its divisors is an integer number (8453841).

Almost surely, 2^86749061 is an apocalyptic number.

It is an amenable number.

86749061 is a deficient number, since it is larger than the sum of its proper divisors (14697031).

86749061 is a wasteful number, since it uses less digits than its factorization.

86749061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9380 (or 9373 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 86749061 is about 9313.9175968010. The cubic root of 86749061 is about 442.6783279027.

The spelling of 86749061 in words is "eighty-six million, seven hundred forty-nine thousand, sixty-one".