78263075 has 12 divisors (see below), whose sum is σ = 105868968. Its totient is φ = 56918400.

The previous prime is 78263051. The next prime is 78263093. The reversal of 78263075 is 57036287.

It is a happy number.

It is not a de Polignac number, because 78263075 - 2⁶ = 78263011 is a prime.

It is a super-2 number, since 2×78263075² = 12250217816911250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142022 + ... + 142571.

It is an arithmetic number, because the mean of its divisors is an integer number (8822414).

Almost surely, 2^78263075 is an apocalyptic number.

78263075 is a deficient number, since it is larger than the sum of its proper divisors (27605893).

78263075 is a wasteful number, since it uses less digits than its factorization.

78263075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284614 (or 284609 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 78263075 is about 8846.6420183028. The cubic root of 78263075 is about 427.7456837050.

It can be divided in two parts, 7826 and 3075, that added together give a palindrome (10901).

The spelling of 78263075 in words is "seventy-eight million, two hundred sixty-three thousand, seventy-five".