78195033 has 36 divisors (see below), whose sum is σ = 132126228. Its totient is φ = 44432640.

The previous prime is 78195031. The next prime is 78195059. The reversal of 78195033 is 33059187.

It can be written as a sum of positive squares in 2 ways, for example, as 5143824 + 73051209 = 2268^2 + 8547^2 .

It is not a de Polignac number, because 78195033 - 2¹ = 78195031 is a prime.

It is a super-2 number, since 2×78195033² = 12228926371742178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78195031) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 102373 + ... + 103133.

It is an arithmetic number, because the mean of its divisors is an integer number (3670173).

Almost surely, 2^78195033 is an apocalyptic number.

It is an amenable number.

78195033 is a deficient number, since it is larger than the sum of its proper divisors (53931195).

78195033 is a wasteful number, since it uses less digits than its factorization.

78195033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 78195033 is about 8842.7955421349. The cubic root of 78195033 is about 427.6216869142.

The spelling of 78195033 in words is "seventy-eight million, one hundred ninety-five thousand, thirty-three".