700221078 has 64 divisors (see below), whose sum is σ = 1615024320. Its totient is φ = 224695296.

The previous prime is 700221059. The next prime is 700221091. The reversal of 700221078 is 870122007.

700221078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192000 + ... + 195612.

It is an arithmetic number, because the mean of its divisors is an integer number (25234755).

Almost surely, 2^700221078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 700221078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807512160).

700221078 is an abundant number, since it is smaller than the sum of its proper divisors (914803242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

700221078 is a wasteful number, since it uses less digits than its factorization.

700221078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758 (or 3752 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 700221078 is about 26461.6907623077. The cubic root of 700221078 is about 887.9974662090.

The spelling of 700221078 in words is "seven hundred million, two hundred twenty-one thousand, seventy-eight".