78464994 has 8 divisors (see below), whose sum is σ = 156930000. Its totient is φ = 26154996.

The previous prime is 78464993. The next prime is 78465001. The reversal of 78464994 is 49946487.

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

78464994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (78464993) 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, 6538744 + ... + 6538755.

It is an arithmetic number, because the mean of its divisors is an integer number (19616250).

Almost surely, 2^78464994 is an apocalyptic number.

78464994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78464994 is a wasteful number, since it uses less digits than its factorization.

78464994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13077504.

The product of its digits is 1741824, while the sum is 51.

The square root of 78464994 is about 8858.0468501809. The cubic root of 78464994 is about 428.1132295697.

The spelling of 78464994 in words is "seventy-eight million, four hundred sixty-four thousand, nine hundred ninety-four".