78275093 has 16 divisors (see below), whose sum is σ = 89058816. Its totient is φ = 68281920.

The previous prime is 78275081. The next prime is 78275111. The reversal of 78275093 is 39057287.

It is a cyclic number.

It is not a de Polignac number, because 78275093 - 2⁴ = 78275077 is a prime.

It is a super-2 number, since 2×78275093² = 12253980368317298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78275093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78275033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15071 + ... + 19587.

It is an arithmetic number, because the mean of its divisors is an integer number (5566176).

Almost surely, 2^78275093 is an apocalyptic number.

It is an amenable number.

78275093 is a deficient number, since it is larger than the sum of its proper divisors (10783723).

78275093 is a wasteful number, since it uses less digits than its factorization.

78275093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 78275093 is about 8847.3212330061. The cubic root of 78275093 is about 427.7675773184.

The spelling of 78275093 in words is "seventy-eight million, two hundred seventy-five thousand, ninety-three".