276865485 has 64 divisors (see below), whose sum is σ = 516160512. Its totient is φ = 125485056.

The previous prime is 276865471. The next prime is 276865489. The reversal of 276865485 is 584568672.

It is a happy number.

It is not a de Polignac number, because 276865485 - 2⁵ = 276865453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276865489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154917 + ... + 156693.

It is an arithmetic number, because the mean of its divisors is an integer number (8065008).

Almost surely, 2^276865485 is an apocalyptic number.

It is an amenable number.

276865485 is a deficient number, since it is larger than the sum of its proper divisors (239295027).

276865485 is a wasteful number, since it uses less digits than its factorization.

276865485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862.

The product of its digits is 3225600, while the sum is 51.

The square root of 276865485 is about 16639.2753748473. The cubic root of 276865485 is about 651.7628556878.

The spelling of 276865485 in words is "two hundred seventy-six million, eight hundred sixty-five thousand, four hundred eighty-five".