10278765 has 64 divisors (see below), whose sum is σ = 21312000. Its totient is φ = 4603392.

The previous prime is 10278757. The next prime is 10278773. The reversal of 10278765 is 56787201.

It is an interprime number because it is at equal distance from previous prime (10278757) and next prime (10278773).

It is not a de Polignac number, because 10278765 - 2³ = 10278757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68911 + ... + 69059.

It is an arithmetic number, because the mean of its divisors is an integer number (333000).

Almost surely, 2^10278765 is an apocalyptic number.

10278765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10278765 is an abundant number, since it is smaller than the sum of its proper divisors (11033235).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10278765 is a wasteful number, since it uses less digits than its factorization.

10278765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 10278765 is about 3206.0513096331. The cubic root of 10278765 is about 217.4270861420.

The spelling of 10278765 in words is "ten million, two hundred seventy-eight thousand, seven hundred sixty-five".