797584145 has 4 divisors (see below), whose sum is σ = 957100980. Its totient is φ = 638067312.

The previous prime is 797584141. The next prime is 797584153. The reversal of 797584145 is 541485797.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541485797 = 9043 ⋅59879.

It can be written as a sum of positive squares in 2 ways, for example, as 446096641 + 351487504 = 21121^2 + 18748^2 .

It is a cyclic number.

It is not a de Polignac number, because 797584145 - 2² = 797584141 is a prime.

It is a super-2 number, since 2×797584145² = 1272280936710762050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 797584093 and 797584102.

It is not an unprimeable number, because it can be changed into a prime (797584141) 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, 79758410 + ... + 79758419.

It is an arithmetic number, because the mean of its divisors is an integer number (239275245).

Almost surely, 2^797584145 is an apocalyptic number.

It is an amenable number.

797584145 is a deficient number, since it is larger than the sum of its proper divisors (159516835).

797584145 is a wasteful number, since it uses less digits than its factorization.

797584145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159516834.

The product of its digits is 1411200, while the sum is 50.

The square root of 797584145 is about 28241.5322707533. The cubic root of 797584145 is about 927.3823740517.

The spelling of 797584145 in words is "seven hundred ninety-seven million, five hundred eighty-four thousand, one hundred forty-five".