678212003 has 8 divisors (see below), whose sum is σ = 775895808. Its totient is φ = 580727304.

The previous prime is 678211987. The next prime is 678212023. The reversal of 678212003 is 300212876.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 678212003 - 2⁴ = 678211987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678212023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42401 + ... + 56162.

It is an arithmetic number, because the mean of its divisors is an integer number (96986976).

Almost surely, 2^678212003 is an apocalyptic number.

678212003 is a deficient number, since it is larger than the sum of its proper divisors (97683805).

678212003 is an equidigital number, since it uses as much as digits as its factorization.

678212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99553.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 678212003 is about 26042.5037774788. The cubic root of 678212003 is about 878.5945208312.

Adding to 678212003 its reverse (300212876), we get a palindrome (978424879).

The spelling of 678212003 in words is "six hundred seventy-eight million, two hundred twelve thousand, three".