78032863 has 4 divisors (see below), whose sum is σ = 78064168. Its totient is φ = 78001560.

The previous prime is 78032837. The next prime is 78032879. The reversal of 78032863 is 36823087.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78032863 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 (78042863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11556 + ... + 17017.

It is an arithmetic number, because the mean of its divisors is an integer number (19516042).

Almost surely, 2^78032863 is an apocalyptic number.

78032863 is a deficient number, since it is larger than the sum of its proper divisors (31305).

78032863 is a wasteful number, since it uses less digits than its factorization.

78032863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31304.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 78032863 is about 8833.6211714110. The cubic root of 78032863 is about 427.3258650362.

The spelling of 78032863 in words is "seventy-eight million, thirty-two thousand, eight hundred sixty-three".