86777648 has 20 divisors (see below), whose sum is σ = 172233768. Its totient is φ = 42330240.

The previous prime is 86777611. The next prime is 86777681. The reversal of 86777648 is 84677768.

It is a self number, because there is not a number n which added to its sum of digits gives 86777648.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65486 + ... + 66797.

Almost surely, 2^86777648 is an apocalyptic number.

It is an amenable number.

86777648 is a deficient number, since it is larger than the sum of its proper divisors (85456120).

86777648 is a wasteful number, since it uses less digits than its factorization.

86777648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132332 (or 132326 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 53.

The square root of 86777648 is about 9315.4521092645. The cubic root of 86777648 is about 442.7269488153.

The spelling of 86777648 in words is "eighty-six million, seven hundred seventy-seven thousand, six hundred forty-eight".