655407936 has 336 divisors, whose sum is σ = 2150156736. Its totient is φ = 197074944.

The previous prime is 655407901. The next prime is 655407941. The reversal of 655407936 is 639704556.

655407936 is a `hidden beast` number, since 6 + 5 + 540 + 79 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 655407891 and 655407900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9782175 + ... + 9782241.

It is an arithmetic number, because the mean of its divisors is an integer number (6399276).

Almost surely, 2^655407936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655407936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075078368).

655407936 is an abundant number, since it is smaller than the sum of its proper divisors (1494748800).

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

655407936 is a wasteful number, since it uses less digits than its factorization.

655407936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The square root of 655407936 is about 25600.9362328802. The cubic root of 655407936 is about 868.6348149065.

The spelling of 655407936 in words is "six hundred fifty-five million, four hundred seven thousand, nine hundred thirty-six".