86749776 has 60 divisors (see below), whose sum is σ = 257067252. Its totient is φ = 27214848.

The previous prime is 86749757. The next prime is 86749777. The reversal of 86749776 is 67794768.

86749776 is a `hidden beast` number, since 86 + 7 + 497 + 76 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 73616400 + 13133376 = 8580^2 + 3624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86749777) 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, 15271 + ... + 20166.

Almost surely, 2^86749776 is an apocalyptic number.

It is an amenable number.

86749776 is an abundant number, since it is smaller than the sum of its proper divisors (170317476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86749776 is a wasteful number, since it uses less digits than its factorization.

86749776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35468 (or 35459 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 86749776 is about 9313.9559801408. The cubic root of 86749776 is about 442.6795441085.

The spelling of 86749776 in words is "eighty-six million, seven hundred forty-nine thousand, seven hundred seventy-six".