78028486 has 8 divisors (see below), whose sum is σ = 120206160. Its totient is φ = 37959768.

The previous prime is 78028471. The next prime is 78028493. The reversal of 78028486 is 68482087.

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, 527146 + ... + 527293.

It is an arithmetic number, because the mean of its divisors is an integer number (15025770).

Almost surely, 2^78028486 is an apocalyptic number.

78028486 is a deficient number, since it is larger than the sum of its proper divisors (42177674).

78028486 is a wasteful number, since it uses less digits than its factorization.

78028486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054478.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 78028486 is about 8833.3734212927. The cubic root of 78028486 is about 427.3178750680.

The spelling of 78028486 in words is "seventy-eight million, twenty-eight thousand, four hundred eighty-six".