678901703 has 4 divisors (see below), whose sum is σ = 679471968. Its totient is φ = 678331440.

The previous prime is 678901697. The next prime is 678901721. The reversal of 678901703 is 307109876.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-678901703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678901303) 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, 283343 + ... + 285728.

It is an arithmetic number, because the mean of its divisors is an integer number (169867992).

Almost surely, 2^678901703 is an apocalyptic number.

678901703 is a deficient number, since it is larger than the sum of its proper divisors (570265).

678901703 is a wasteful number, since it uses less digits than its factorization.

678901703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570264.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 678901703 is about 26055.7422270025. The cubic root of 678901703 is about 878.8922455073.

The spelling of 678901703 in words is "six hundred seventy-eight million, nine hundred one thousand, seven hundred three".