78967988 has 36 divisors (see below), whose sum is σ = 152754756. Its totient is φ = 35692800.

The previous prime is 78967963. The next prime is 78968011. The reversal of 78967988 is 88976987.

78967988 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 2 ways, for example, as 72114064 + 6853924 = 8492^2 + 2618^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78967988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116306 + ... + 116982.

Almost surely, 2^78967988 is an apocalyptic number.

It is an amenable number.

78967988 is a deficient number, since it is larger than the sum of its proper divisors (73786768).

78967988 is a wasteful number, since it uses less digits than its factorization.

78967988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 931 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 62.

The square root of 78967988 is about 8886.3934191549. The cubic root of 78967988 is about 429.0260777485.

The spelling of 78967988 in words is "seventy-eight million, nine hundred sixty-seven thousand, nine hundred eighty-eight".