406675689 has 8 divisors (see below), whose sum is σ = 619696320. Its totient is φ = 232386096.

The previous prime is 406675669. The next prime is 406675697. The reversal of 406675689 is 986576604.

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

It is not a de Polignac number, because 406675689 - 2⁵ = 406675657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (406675609) 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, 9682734 + ... + 9682775.

It is an arithmetic number, because the mean of its divisors is an integer number (77462040).

Almost surely, 2^406675689 is an apocalyptic number.

It is an amenable number.

406675689 is a deficient number, since it is larger than the sum of its proper divisors (213020631).

406675689 is a wasteful number, since it uses less digits than its factorization.

406675689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19365519.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The square root of 406675689 is about 20166.2016502861. The cubic root of 406675689 is about 740.8826143866.

The spelling of 406675689 in words is "four hundred six million, six hundred seventy-five thousand, six hundred eighty-nine".