406857097 has 16 divisors (see below), whose sum is σ = 439966080. Its totient is φ = 375286912.

The previous prime is 406857079. The next prime is 406857103. The reversal of 406857097 is 790758604.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 406857097 - 2¹⁹ = 406332809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406857047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69093 + ... + 74749.

It is an arithmetic number, because the mean of its divisors is an integer number (27497880).

Almost surely, 2^406857097 is an apocalyptic number.

It is an amenable number.

406857097 is a deficient number, since it is larger than the sum of its proper divisors (33108983).

406857097 is a wasteful number, since it uses less digits than its factorization.

406857097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5792.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 406857097 is about 20170.6989715280. The cubic root of 406857097 is about 740.9927611673.

The spelling of 406857097 in words is "four hundred six million, eight hundred fifty-seven thousand, ninety-seven".