78433275 has 24 divisors (see below), whose sum is σ = 130521904. Its totient is φ = 41558400.

The previous prime is 78433261. The next prime is 78433301. The reversal of 78433275 is 57233487.

It is not a de Polignac number, because 78433275 - 2⁶ = 78433211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8445 + ... + 15105.

Almost surely, 2^78433275 is an apocalyptic number.

78433275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78433275 is a deficient number, since it is larger than the sum of its proper divisors (52088629).

78433275 is a wasteful number, since it uses less digits than its factorization.

78433275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831 (or 6826 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 78433275 is about 8856.2562632300. The cubic root of 78433275 is about 428.0555343987.

The spelling of 78433275 in words is "seventy-eight million, four hundred thirty-three thousand, two hundred seventy-five".