78955963 has 8 divisors (see below), whose sum is σ = 83970320. Its totient is φ = 74027520.

The previous prime is 78955957. The next prime is 78955969. The reversal of 78955963 is 36955987.

It is an interprime number because it is at equal distance from previous prime (78955957) and next prime (78955969).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78955963 - 2²¹ = 76858811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78955963.

It is not an unprimeable number, because it can be changed into a prime (78955969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19578 + ... + 23263.

It is an arithmetic number, because the mean of its divisors is an integer number (10496290).

Almost surely, 2^78955963 is an apocalyptic number.

78955963 is a deficient number, since it is larger than the sum of its proper divisors (5014357).

78955963 is a wasteful number, since it uses less digits than its factorization.

78955963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42957.

The product of its digits is 2041200, while the sum is 52.

The square root of 78955963 is about 8885.7167971976. The cubic root of 78955963 is about 429.0042997234.

The spelling of 78955963 in words is "seventy-eight million, nine hundred fifty-five thousand, nine hundred sixty-three".