78098235 has 16 divisors (see below), whose sum is σ = 128005920. Its totient is φ = 40636160.

The previous prime is 78098233. The next prime is 78098261. The reversal of 78098235 is 53289087.

It is not a de Polignac number, because 78098235 - 2¹ = 78098233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78098233) 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 15 ways as a sum of consecutive naturals, for example, 62880 + ... + 64109.

It is an arithmetic number, because the mean of its divisors is an integer number (8000370).

Almost surely, 2^78098235 is an apocalyptic number.

78098235 is a deficient number, since it is larger than the sum of its proper divisors (49907685).

78098235 is a wasteful number, since it uses less digits than its factorization.

78098235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127038.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 78098235 is about 8837.3205780938. The cubic root of 78098235 is about 427.4451624199.

The spelling of 78098235 in words is "seventy-eight million, ninety-eight thousand, two hundred thirty-five".