9780754265 has 4 divisors (see below), whose sum is σ = 11736905124. Its totient is φ = 7824603408.

The previous prime is 9780754261. The next prime is 9780754327. The reversal of 9780754265 is 5624570879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5624570879 = 541 ⋅10396619.

It can be written as a sum of positive squares in 2 ways, for example, as 6901787929 + 2878966336 = 83077^2 + 53656^2 .

It is a cyclic number.

It is not a de Polignac number, because 9780754265 - 2² = 9780754261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9780754261) 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, 978075422 + ... + 978075431.

It is an arithmetic number, because the mean of its divisors is an integer number (2934226281).

Almost surely, 2^9780754265 is an apocalyptic number.

It is an amenable number.

9780754265 is a deficient number, since it is larger than the sum of its proper divisors (1956150859).

9780754265 is a wasteful number, since it uses less digits than its factorization.

9780754265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956150858.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The square root of 9780754265 is about 98897.6959539503. The cubic root of 9780754265 is about 2138.5731794597.

The spelling of 9780754265 in words is "nine billion, seven hundred eighty million, seven hundred fifty-four thousand, two hundred sixty-five".