78833087 has 4 divisors (see below), whose sum is σ = 79124256. Its totient is φ = 78541920.

The previous prime is 78833077. The next prime is 78833099. The reversal of 78833087 is 78033887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78033887 = 1153 ⋅67679.

It is a cyclic number.

It is not a de Polignac number, because 78833087 - 2¹⁶ = 78767551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78833017) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 145178 + ... + 145719.

It is an arithmetic number, because the mean of its divisors is an integer number (19781064).

Almost surely, 2^78833087 is an apocalyptic number.

78833087 is a deficient number, since it is larger than the sum of its proper divisors (291169).

78833087 is a wasteful number, since it uses less digits than its factorization.

78833087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291168.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 78833087 is about 8878.7998625940. The cubic root of 78833087 is about 428.7816367785.

The spelling of 78833087 in words is "seventy-eight million, eight hundred thirty-three thousand, eighty-seven".