86111749 has 8 divisors (see below), whose sum is σ = 92427480. Its totient is φ = 79934976.

The previous prime is 86111741. The next prime is 86111771. The reversal of 86111749 is 94711168.

It can be written as a sum of positive squares in 4 ways, for example, as 31248100 + 54863649 = 5590^2 + 7407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86111749 - 2³ = 86111741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86111741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33454 + ... + 35935.

It is an arithmetic number, because the mean of its divisors is an integer number (11553435).

Almost surely, 2^86111749 is an apocalyptic number.

It is an amenable number.

86111749 is a deficient number, since it is larger than the sum of its proper divisors (6315731).

86111749 is a wasteful number, since it uses less digits than its factorization.

86111749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69479.

The product of its digits is 12096, while the sum is 37.

The square root of 86111749 is about 9279.6416417877. The cubic root of 86111749 is about 441.5915997891.

The spelling of 86111749 in words is "eighty-six million, one hundred eleven thousand, seven hundred forty-nine".