1028719678 has 8 divisors (see below), whose sum is σ = 1763519472. Its totient is φ = 440879856.

The previous prime is 1028719673. The next prime is 1028719709. The reversal of 1028719678 is 8769178201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028719673) 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, 36739975 + ... + 36740002.

It is an arithmetic number, because the mean of its divisors is an integer number (220439934).

Almost surely, 2^1028719678 is an apocalyptic number.

1028719678 is a deficient number, since it is larger than the sum of its proper divisors (734799794).

1028719678 is an equidigital number, since it uses as much as digits as its factorization.

1028719678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73479986.

The product of its (nonzero) digits is 338688, while the sum is 49.

The square root of 1028719678 is about 32073.6601902558. The cubic root of 1028719678 is about 1009.4830141806.

The spelling of 1028719678 in words is "one billion, twenty-eight million, seven hundred nineteen thousand, six hundred seventy-eight".