86261767 has 4 divisors (see below), whose sum is σ = 90801880. Its totient is φ = 81721656.

The previous prime is 86261761. The next prime is 86261789. The reversal of 86261767 is 76716268.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86261767 - 2¹⁵ = 86228999 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 (86261761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2270028 + ... + 2270065.

It is an arithmetic number, because the mean of its divisors is an integer number (22700470).

Almost surely, 2^86261767 is an apocalyptic number.

86261767 is a deficient number, since it is larger than the sum of its proper divisors (4540113).

86261767 is a wasteful number, since it uses less digits than its factorization.

86261767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540112.

The product of its digits is 169344, while the sum is 43.

The square root of 86261767 is about 9287.7213028816. The cubic root of 86261767 is about 441.8478879125.

The spelling of 86261767 in words is "eighty-six million, two hundred sixty-one thousand, seven hundred sixty-seven".