406864875 has 32 divisors (see below), whose sum is σ = 678330432. Its totient is φ = 216576000.

The previous prime is 406864873. The next prime is 406864889. The reversal of 406864875 is 578468604.

It is not a de Polignac number, because 406864875 - 2¹ = 406864873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406864873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352299 + ... + 353451.

It is an arithmetic number, because the mean of its divisors is an integer number (21197826).

Almost surely, 2^406864875 is an apocalyptic number.

406864875 is a deficient number, since it is larger than the sum of its proper divisors (271465557).

406864875 is a wasteful number, since it uses less digits than its factorization.

406864875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112 (or 2102 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The square root of 406864875 is about 20170.8917750307. The cubic root of 406864875 is about 740.9974830586.

The spelling of 406864875 in words is "four hundred six million, eight hundred sixty-four thousand, eight hundred seventy-five".