1009656385 has 8 divisors (see below), whose sum is σ = 1220304960. Its totient is φ = 801913584.

The previous prime is 1009656353. The next prime is 1009656421. The reversal of 1009656385 is 5836569001.

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 1009656385 - 2⁵ = 1009656353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725677 + ... + 727066.

It is an arithmetic number, because the mean of its divisors is an integer number (152538120).

Almost surely, 2^1009656385 is an apocalyptic number.

It is an amenable number.

1009656385 is a deficient number, since it is larger than the sum of its proper divisors (210648575).

1009656385 is a wasteful number, since it uses less digits than its factorization.

1009656385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452887.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 1009656385 is about 31775.0906371642. The cubic root of 1009656385 is about 1003.2084895848.

The spelling of 1009656385 in words is "one billion, nine million, six hundred fifty-six thousand, three hundred eighty-five".