78260333 has 6 divisors (see below), whose sum is σ = 83134986. Its totient is φ = 73656512.

The previous prime is 78260309. The next prime is 78260339. The reversal of 78260333 is 33306287.

It can be written as a sum of positive squares in 3 ways, for example, as 8988004 + 69272329 = 2998^2 + 8323^2 .

It is not a de Polignac number, because 78260333 - 2⁶ = 78260269 is a prime.

It is a super-2 number, since 2×78260333² = 12249359442541778, 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 78260333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78260339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135110 + ... + 135687.

It is an arithmetic number, because the mean of its divisors is an integer number (13855831).

Almost surely, 2^78260333 is an apocalyptic number.

It is an amenable number.

78260333 is a deficient number, since it is larger than the sum of its proper divisors (4874653).

78260333 is a wasteful number, since it uses less digits than its factorization.

78260333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270831 (or 270814 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 78260333 is about 8846.4870428888. The cubic root of 78260333 is about 427.7406881931.

The spelling of 78260333 in words is "seventy-eight million, two hundred sixty thousand, three hundred thirty-three".