406848665 has 8 divisors (see below), whose sum is σ = 491946048. Its totient is φ = 322993840.

The previous prime is 406848647. The next prime is 406848677. The reversal of 406848665 is 566848604.

It is a happy number.

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

It is not a de Polignac number, because 406848665 - 2²² = 402654361 is a prime.

It is a Duffinian number.

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, 309917 + ... + 311226.

It is an arithmetic number, because the mean of its divisors is an integer number (61493256).

Almost surely, 2^406848665 is an apocalyptic number.

It is an amenable number.

406848665 is a deficient number, since it is larger than the sum of its proper divisors (85097383).

406848665 is a wasteful number, since it uses less digits than its factorization.

406848665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621279.

The product of its (nonzero) digits is 1105920, while the sum is 47.

The square root of 406848665 is about 20170.4899543863. The cubic root of 406848665 is about 740.9876421758.

The spelling of 406848665 in words is "four hundred six million, eight hundred forty-eight thousand, six hundred sixty-five".