611897496 has 96 divisors (see below), whose sum is σ = 1809864000. Its totient is φ = 171845184.

The previous prime is 611897459. The next prime is 611897513. The reversal of 611897496 is 694798116.

It is a happy number.

It is a super-2 number, since 2×611897496² = 748837091222140032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64975 + ... + 73793.

It is an arithmetic number, because the mean of its divisors is an integer number (18852750).

Almost surely, 2^611897496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611897496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904932000).

611897496 is an abundant number, since it is smaller than the sum of its proper divisors (1197966504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611897496 is a wasteful number, since it uses less digits than its factorization.

611897496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8901 (or 8890 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 611897496 is about 24736.5619276406. The cubic root of 611897496 is about 848.9710714740.

The spelling of 611897496 in words is "six hundred eleven million, eight hundred ninety-seven thousand, four hundred ninety-six".