78961034 has 32 divisors (see below), whose sum is σ = 126337536. Its totient is φ = 36961920.

The previous prime is 78961033. The next prime is 78961049. The reversal of 78961034 is 43016987.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78961033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253739 + ... + 254049.

It is an arithmetic number, because the mean of its divisors is an integer number (3948048).

Almost surely, 2^78961034 is an apocalyptic number.

78961034 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

78961034 is a deficient number, since it is larger than the sum of its proper divisors (47376502).

78961034 is a wasteful number, since it uses less digits than its factorization.

78961034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 78961034 is about 8886.0021381947. The cubic root of 78961034 is about 429.0134838904.

Subtracting from 78961034 its sum of digits (38), we obtain a square (78960996 = 8886²).

The spelling of 78961034 in words is "seventy-eight million, nine hundred sixty-one thousand, thirty-four".