78028562 has 8 divisors (see below), whose sum is σ = 119026800. Its totient is φ = 38352964.

The previous prime is 78028553. The next prime is 78028591. The reversal of 78028562 is 26582087.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330512 + ... + 330747.

It is an arithmetic number, because the mean of its divisors is an integer number (14878350).

Almost surely, 2^78028562 is an apocalyptic number.

78028562 is a deficient number, since it is larger than the sum of its proper divisors (40998238).

78028562 is a wasteful number, since it uses less digits than its factorization.

78028562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661320.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 78028562 is about 8833.3777231589. The cubic root of 78028562 is about 427.3180138043.

The spelling of 78028562 in words is "seventy-eight million, twenty-eight thousand, five hundred sixty-two".