78580930 has 8 divisors (see below), whose sum is σ = 141445692. Its totient is φ = 31432368.

The previous prime is 78580889. The next prime is 78580937. The reversal of 78580930 is 3908587.

It can be written as a sum of positive squares in 2 ways, for example, as 72063121 + 6517809 = 8489^2 + 2553^2 .

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

It is not an unprimeable number, because it can be changed into a prime (78580937) 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, 3929037 + ... + 3929056.

Almost surely, 2^78580930 is an apocalyptic number.

78580930 is a deficient number, since it is larger than the sum of its proper divisors (62864762).

78580930 is a wasteful number, since it uses less digits than its factorization.

78580930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858100.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 78580930 is about 8864.5885409307. The cubic root of 78580930 is about 428.3239787945.

The spelling of 78580930 in words is "seventy-eight million, five hundred eighty thousand, nine hundred thirty".