78494968 has 16 divisors (see below), whose sum is σ = 148239000. Its totient is φ = 38964576.

The previous prime is 78494963. The next prime is 78494971. The reversal of 78494968 is 86949487.

It is a super-2 number, since 2×78494968² = 12322920002642048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78494963) 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, 34183 + ... + 36406.

Almost surely, 2^78494968 is an apocalyptic number.

It is an amenable number.

78494968 is a deficient number, since it is larger than the sum of its proper divisors (69744032).

78494968 is a wasteful number, since it uses less digits than its factorization.

78494968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70734 (or 70730 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 78494968 is about 8859.7385965953. The cubic root of 78494968 is about 428.1677363913.

The spelling of 78494968 in words is "seventy-eight million, four hundred ninety-four thousand, nine hundred sixty-eight".