655097886 has 48 divisors (see below), whose sum is σ = 1452999600. Its totient is φ = 213243264.

The previous prime is 655097879. The next prime is 655097887. The reversal of 655097886 is 688790556.

655097886 is a `hidden beast` number, since 6 + 550 + 9 + 7 + 8 + 86 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655097887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164770 + ... + 168698.

It is an arithmetic number, because the mean of its divisors is an integer number (30270825).

Almost surely, 2^655097886 is an apocalyptic number.

655097886 is an abundant number, since it is smaller than the sum of its proper divisors (797901714).

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

655097886 is a wasteful number, since it uses less digits than its factorization.

655097886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153 (or 4150 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The square root of 655097886 is about 25594.8800739523. The cubic root of 655097886 is about 868.4978199708.

The spelling of 655097886 in words is "six hundred fifty-five million, ninety-seven thousand, eight hundred eighty-six".