611605497 has 8 divisors (see below), whose sum is σ = 858393760. Its totient is φ = 386277120.

The previous prime is 611605441. The next prime is 611605507. The reversal of 611605497 is 794506116.

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

It is not a de Polignac number, because 611605497 - 2⁶ = 611605433 is a prime.

It is a super-3 number, since 3×611605497³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611605427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5364904 + ... + 5365017.

It is an arithmetic number, because the mean of its divisors is an integer number (107299220).

Almost surely, 2^611605497 is an apocalyptic number.

It is an amenable number.

611605497 is a deficient number, since it is larger than the sum of its proper divisors (246788263).

611605497 is a wasteful number, since it uses less digits than its factorization.

611605497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10729943.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 611605497 is about 24730.6590490427. The cubic root of 611605497 is about 848.8360062882.

The spelling of 611605497 in words is "six hundred eleven million, six hundred five thousand, four hundred ninety-seven".