78433011 has 6 divisors (see below), whose sum is σ = 113292140. Its totient is φ = 52288668.

The previous prime is 78433009. The next prime is 78433027. The reversal of 78433011 is 11033487.

It is not a de Polignac number, because 78433011 - 2¹ = 78433009 is a prime.

It is a super-2 number, since 2×78433011² = 12303474429052242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78433031) 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, 4357381 + ... + 4357398.

Almost surely, 2^78433011 is an apocalyptic number.

78433011 is a deficient number, since it is larger than the sum of its proper divisors (34859129).

78433011 is a wasteful number, since it uses less digits than its factorization.

78433011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8714785 (or 8714782 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 78433011 is about 8856.2413584997. The cubic root of 78433011 is about 428.0550541315.

Adding to 78433011 its reverse (11033487), we get a palindrome (89466498).

The spelling of 78433011 in words is "seventy-eight million, four hundred thirty-three thousand, eleven".