78748464 has 80 divisors (see below), whose sum is σ = 217049600. Its totient is φ = 24530688.

The previous prime is 78748459. The next prime is 78748493. The reversal of 78748464 is 46484787.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71502 + ... + 72594.

It is an arithmetic number, because the mean of its divisors is an integer number (2713120).

Almost surely, 2^78748464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78748464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108524800).

78748464 is an abundant number, since it is smaller than the sum of its proper divisors (138301136).

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

78748464 is a wasteful number, since it uses less digits than its factorization.

78748464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202 (or 1196 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 48.

The square root of 78748464 is about 8874.0331304317. The cubic root of 78748464 is about 428.6281573160.

The spelling of 78748464 in words is "seventy-eight million, seven hundred forty-eight thousand, four hundred sixty-four".