605653091 has 4 divisors (see below), whose sum is σ = 609510912. Its totient is φ = 601795272.

The previous prime is 605653073. The next prime is 605653109. The reversal of 605653091 is 190356506.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190356506 = 2 ⋅95178253.

It is an interprime number because it is at equal distance from previous prime (605653073) and next prime (605653109).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605653091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605653051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928675 + ... + 1928988.

It is an arithmetic number, because the mean of its divisors is an integer number (152377728).

Almost surely, 2^605653091 is an apocalyptic number.

605653091 is a deficient number, since it is larger than the sum of its proper divisors (3857821).

605653091 is a wasteful number, since it uses less digits than its factorization.

605653091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857820.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 605653091 is about 24610.0201340836. The cubic root of 605653091 is about 846.0732792388.

The spelling of 605653091 in words is "six hundred five million, six hundred fifty-three thousand, ninety-one".