86769720 has 48 divisors (see below), whose sum is σ = 282002760. Its totient is φ = 23138496.

The previous prime is 86769691. The next prime is 86769721. The reversal of 86769720 is 2796768.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86769721) 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, 120154 + ... + 120873.

Almost surely, 2^86769720 is an apocalyptic number.

It is an amenable number.

86769720 is an abundant number, since it is smaller than the sum of its proper divisors (195233040).

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

86769720 is a wasteful number, since it uses less digits than its factorization.

86769720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241044 (or 241037 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 86769720 is about 9315.0265700104. The cubic root of 86769720 is about 442.7134659034.

The spelling of 86769720 in words is "eighty-six million, seven hundred sixty-nine thousand, seven hundred twenty".