700078 has 4 divisors (see below), whose sum is σ = 1050120. Its totient is φ = 350038.

The previous prime is 700067. The next prime is 700079. The reversal of 700078 is 870007.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (700079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175018 + ... + 175021.

It is an arithmetic number, because the mean of its divisors is an integer number (262530).

2⁷⁰⁰⁰⁷⁸ is an apocalyptic number.

700078 is a deficient number, since it is larger than the sum of its proper divisors (350042).

700078 is a wasteful number, since it uses less digits than its factorization.

700078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350041.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 700078 is about 836.7066391514. The cubic root of 700078 is about 88.7936979809.

The spelling of 700078 in words is "seven hundred thousand, seventy-eight".