80398678 has 8 divisors (see below), whose sum is σ = 127692072. Its totient is φ = 37834656.

The previous prime is 80398673. The next prime is 80398711. The reversal of 80398678 is 87689308.

It is a happy number.

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 (80398673) by changing a digit.

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, 1182300 + ... + 1182367.

It is an arithmetic number, because the mean of its divisors is an integer number (15961509).

Almost surely, 2^80398678 is an apocalyptic number.

80398678 is a deficient number, since it is larger than the sum of its proper divisors (47293394).

80398678 is a wasteful number, since it uses less digits than its factorization.

80398678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364686.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 80398678 is about 8966.5309902994. The cubic root of 80398678 is about 431.6015237055.

The spelling of 80398678 in words is "eighty million, three hundred ninety-eight thousand, six hundred seventy-eight".