78235233 has 4 divisors (see below), whose sum is σ = 104313648. Its totient is φ = 52156820.

The previous prime is 78235187. The next prime is 78235247. The reversal of 78235233 is 33253287.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78235233 - 2¹⁸ = 77973089 is a prime.

It is a super-2 number, since 2×78235233² = 12241503365128578, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78235194 and 78235203.

It is not an unprimeable number, because it can be changed into a prime (78235033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13039203 + ... + 13039208.

It is an arithmetic number, because the mean of its divisors is an integer number (26078412).

Almost surely, 2^78235233 is an apocalyptic number.

It is an amenable number.

78235233 is a deficient number, since it is larger than the sum of its proper divisors (26078415).

78235233 is a wasteful number, since it uses less digits than its factorization.

78235233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26078414.

The product of its digits is 30240, while the sum is 33.

The square root of 78235233 is about 8845.0682869043. The cubic root of 78235233 is about 427.6949543419.

The spelling of 78235233 in words is "seventy-eight million, two hundred thirty-five thousand, two hundred thirty-three".