78560390 has 8 divisors (see below), whose sum is σ = 141408720. Its totient is φ = 31424152.

The previous prime is 78560371. The next prime is 78560407. The reversal of 78560390 is 9306587.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928010 + ... + 3928029.

It is an arithmetic number, because the mean of its divisors is an integer number (17676090).

Almost surely, 2^78560390 is an apocalyptic number.

78560390 is a deficient number, since it is larger than the sum of its proper divisors (62848330).

78560390 is a wasteful number, since it uses less digits than its factorization.

78560390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856046.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 78560390 is about 8863.4299230038. The cubic root of 78560390 is about 428.2866561634.

The spelling of 78560390 in words is "seventy-eight million, five hundred sixty thousand, three hundred ninety".