613491776 has 56 divisors (see below), whose sum is σ = 1242340416. Its totient is φ = 300531200.

The previous prime is 613491763. The next prime is 613491797. The reversal of 613491776 is 677194316.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691205 + ... + 692091.

Almost surely, 2^613491776 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 613491776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621170208).

613491776 is an abundant number, since it is smaller than the sum of its proper divisors (628848640).

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

613491776 is a wasteful number, since it uses less digits than its factorization.

613491776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1097 counting only the distinct ones).

The product of its digits is 190512, while the sum is 44.

The square root of 613491776 is about 24768.7661380215. The cubic root of 613491776 is about 849.7077546649.

The spelling of 613491776 in words is "six hundred thirteen million, four hundred ninety-one thousand, seven hundred seventy-six".