7263865 has 16 divisors (see below), whose sum is σ = 10101888. Its totient is φ = 4910976.

The previous prime is 7263863. The next prime is 7263887. The reversal of 7263865 is 5683627.

It is not a de Polignac number, because 7263865 - 2¹ = 7263863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7263863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1134 + ... + 3976.

It is an arithmetic number, because the mean of its divisors is an integer number (631368).

Almost surely, 2^7263865 is an apocalyptic number.

It is an amenable number.

7263865 is a deficient number, since it is larger than the sum of its proper divisors (2838023).

7263865 is a wasteful number, since it uses less digits than its factorization.

7263865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928.

The product of its digits is 60480, while the sum is 37.

The square root of 7263865 is about 2695.1558396501. The cubic root of 7263865 is about 193.6671320958.

It can be divided in two parts, 7263 and 865, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 7263865 in words is "seven million, two hundred sixty-three thousand, eight hundred sixty-five".