78773452 has 6 divisors (see below), whose sum is σ = 137853548. Its totient is φ = 39386724.

The previous prime is 78773419. The next prime is 78773477. The reversal of 78773452 is 25437787.

It is a junction number, because it is equal to n+sod(n) for n = 78773399 and 78773408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9846678 + ... + 9846685.

Almost surely, 2^78773452 is an apocalyptic number.

It is an amenable number.

78773452 is a deficient number, since it is larger than the sum of its proper divisors (59080096).

78773452 is a wasteful number, since it uses less digits than its factorization.

78773452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19693367 (or 19693365 counting only the distinct ones).

The product of its digits is 329280, while the sum is 43.

The square root of 78773452 is about 8875.4409467924. The cubic root of 78773452 is about 428.6734891112.

The spelling of 78773452 in words is "seventy-eight million, seven hundred seventy-three thousand, four hundred fifty-two".