655705047 has 8 divisors (see below), whose sum is σ = 874748160. Its totient is φ = 436899320.

The previous prime is 655705031. The next prime is 655705069. The reversal of 655705047 is 740507556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655705047 - 2⁴ = 655705031 is a prime.

It is a super-2 number, since 2×655705047² = 859898217322544418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 655704996 and 655705014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655705007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52797 + ... + 64022.

It is an arithmetic number, because the mean of its divisors is an integer number (109343520).

Almost surely, 2^655705047 is an apocalyptic number.

655705047 is a deficient number, since it is larger than the sum of its proper divisors (219043113).

655705047 is a wasteful number, since it uses less digits than its factorization.

655705047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118693.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 655705047 is about 25606.7383124052. The cubic root of 655705047 is about 868.7660522404.

The spelling of 655705047 in words is "six hundred fifty-five million, seven hundred five thousand, forty-seven".