613779056 has 20 divisors (see below), whose sum is σ = 1297306104. Its totient is φ = 278990400.

The previous prime is 613779053. The next prime is 613779079. The reversal of 613779056 is 650977316.

It is a super-2 number, since 2×613779056² = 753449459168502272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 613778998 and 613779016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613779053) 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, 1743515 + ... + 1743866.

Almost surely, 2^613779056 is an apocalyptic number.

It is an amenable number.

613779056 is an abundant number, since it is smaller than the sum of its proper divisors (683527048).

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

613779056 is a wasteful number, since it uses less digits than its factorization.

613779056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487400 (or 3487394 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 613779056 is about 24774.5646984967. The cubic root of 613779056 is about 849.8403649465.

The spelling of 613779056 in words is "six hundred thirteen million, seven hundred seventy-nine thousand, fifty-six".