646134097 has 8 divisors (see below), whose sum is σ = 739120896. Its totient is φ = 553317792.

The previous prime is 646134053. The next prime is 646134103. The reversal of 646134097 is 790431646.

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

It is a cyclic number.

It is not a de Polignac number, because 646134097 - 2²³ = 637745489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (646134017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34393 + ... + 49750.

It is an arithmetic number, because the mean of its divisors is an integer number (92390112).

Almost surely, 2^646134097 is an apocalyptic number.

It is an amenable number.

646134097 is a deficient number, since it is larger than the sum of its proper divisors (92986799).

646134097 is a wasteful number, since it uses less digits than its factorization.

646134097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85247.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 646134097 is about 25419.1679053426. The cubic root of 646134097 is about 864.5183579476.

The spelling of 646134097 in words is "six hundred forty-six million, one hundred thirty-four thousand, ninety-seven".