617329091 has 4 divisors (see below), whose sum is σ = 619314384. Its totient is φ = 615343800.

The previous prime is 617329081. The next prime is 617329103. The reversal of 617329091 is 190923716.

It is a happy number.

617329091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-617329091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617329051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992180 + ... + 992801.

It is an arithmetic number, because the mean of its divisors is an integer number (154828596).

Almost surely, 2^617329091 is an apocalyptic number.

617329091 is a deficient number, since it is larger than the sum of its proper divisors (1985293).

617329091 is a wasteful number, since it uses less digits than its factorization.

617329091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985292.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 617329091 is about 24846.1081660690. The cubic root of 617329091 is about 851.4756792765.

The spelling of 617329091 in words is "six hundred seventeen million, three hundred twenty-nine thousand, ninety-one".