797903144 has 8 divisors (see below), whose sum is σ = 1496068410. Its totient is φ = 398951568.

The previous prime is 797903123. The next prime is 797903159. The reversal of 797903144 is 441309797.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 464402500 + 333500644 = 21550^2 + 18262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 797903095 and 797903104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49868939 + ... + 49868954.

Almost surely, 2^797903144 is an apocalyptic number.

It is an amenable number.

797903144 is a deficient number, since it is larger than the sum of its proper divisors (698165266).

797903144 is a wasteful number, since it uses less digits than its factorization.

797903144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99737899 (or 99737895 counting only the distinct ones).

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

The square root of 797903144 is about 28247.1793990126. The cubic root of 797903144 is about 927.5059951226.

The spelling of 797903144 in words is "seven hundred ninety-seven million, nine hundred three thousand, one hundred forty-four".