613222691 has 16 divisors (see below), whose sum is σ = 676081728. Its totient is φ = 553804800.

The previous prime is 613222639. The next prime is 613222717. The reversal of 613222691 is 196222316.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613222691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613222091) 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 15 ways as a sum of consecutive naturals, for example, 35306 + ... + 49728.

It is an arithmetic number, because the mean of its divisors is an integer number (42255108).

Almost surely, 2^613222691 is an apocalyptic number.

613222691 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

613222691 is a deficient number, since it is larger than the sum of its proper divisors (62859037).

613222691 is a wasteful number, since it uses less digits than its factorization.

613222691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14542.

The product of its digits is 7776, while the sum is 32.

The square root of 613222691 is about 24763.3336003051. Note that the first 3 decimals coincide. The cubic root of 613222691 is about 849.5835057579.

The spelling of 613222691 in words is "six hundred thirteen million, two hundred twenty-two thousand, six hundred ninety-one".