78208548 has 24 divisors (see below), whose sum is σ = 199076640. Its totient is φ = 23699520.

The previous prime is 78208531. The next prime is 78208561. The reversal of 78208548 is 84580287.

It is a super-2 number, since 2×78208548² = 12233153960536608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296113 + ... + 296376.

It is an arithmetic number, because the mean of its divisors is an integer number (8294860).

Almost surely, 2^78208548 is an apocalyptic number.

It is an amenable number.

78208548 is an abundant number, since it is smaller than the sum of its proper divisors (120868092).

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

78208548 is a wasteful number, since it uses less digits than its factorization.

78208548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592507 (or 592505 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 78208548 is about 8843.5596905319. The cubic root of 78208548 is about 427.6463217874.

The spelling of 78208548 in words is "seventy-eight million, two hundred eight thousand, five hundred forty-eight".