78741078 has 16 divisors (see below), whose sum is σ = 169596336. Its totient is φ = 24228000.

The previous prime is 78741067. The next prime is 78741101. The reversal of 78741078 is 87014787.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504673 + ... + 504828.

It is an arithmetic number, because the mean of its divisors is an integer number (10599771).

Almost surely, 2^78741078 is an apocalyptic number.

78741078 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

78741078 is an abundant number, since it is smaller than the sum of its proper divisors (90855258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78741078 is a wasteful number, since it uses less digits than its factorization.

78741078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009519.

The product of its (nonzero) digits is 87808, while the sum is 42.

The square root of 78741078 is about 8873.6169626596. The cubic root of 78741078 is about 428.6147562227.

The spelling of 78741078 in words is "seventy-eight million, seven hundred forty-one thousand, seventy-eight".