744669161 has 8 divisors (see below), whose sum is σ = 747477984. Its totient is φ = 741866400.

The previous prime is 744669157. The next prime is 744669193. The reversal of 744669161 is 161966447.

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

It is a cyclic number.

It is not a de Polignac number, because 744669161 - 2² = 744669157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (744668161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512486 + ... + 513936.

It is an arithmetic number, because the mean of its divisors is an integer number (93434748).

Almost surely, 2^744669161 is an apocalyptic number.

It is an amenable number.

744669161 is a deficient number, since it is larger than the sum of its proper divisors (2808823).

744669161 is a wasteful number, since it uses less digits than its factorization.

744669161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031.

The product of its digits is 217728, while the sum is 44.

The square root of 744669161 is about 27288.6269533665. The cubic root of 744669161 is about 906.4025588842.

The spelling of 744669161 in words is "seven hundred forty-four million, six hundred sixty-nine thousand, one hundred sixty-one".