427648785 has 32 divisors (see below), whose sum is σ = 705656448. Its totient is φ = 221045760.

The previous prime is 427648763. The next prime is 427648801. The reversal of 427648785 is 587846724.

It is not a de Polignac number, because 427648785 - 2⁷ = 427648657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62745 + ... + 69225.

It is an arithmetic number, because the mean of its divisors is an integer number (22051764).

Almost surely, 2^427648785 is an apocalyptic number.

It is an amenable number.

427648785 is a deficient number, since it is larger than the sum of its proper divisors (278007663).

427648785 is a wasteful number, since it uses less digits than its factorization.

427648785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6625.

The product of its digits is 3010560, while the sum is 51.

The square root of 427648785 is about 20679.6708145947. The cubic root of 427648785 is about 753.4060109266.

The spelling of 427648785 in words is "four hundred twenty-seven million, six hundred forty-eight thousand, seven hundred eighty-five".