86699768 has 8 divisors (see below), whose sum is σ = 162562080. Its totient is φ = 43349880.

The previous prime is 86699761. The next prime is 86699771. The reversal of 86699768 is 86799668.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86699761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5418728 + ... + 5418743.

It is an arithmetic number, because the mean of its divisors is an integer number (20320260).

Almost surely, 2^86699768 is an apocalyptic number.

It is an amenable number.

86699768 is a deficient number, since it is larger than the sum of its proper divisors (75862312).

86699768 is a wasteful number, since it uses less digits than its factorization.

86699768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10837477 (or 10837473 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 59.

The square root of 86699768 is about 9311.2710195762. The cubic root of 86699768 is about 442.5944650269.

The spelling of 86699768 in words is "eighty-six million, six hundred ninety-nine thousand, seven hundred sixty-eight".