701661407 has 2 divisors, whose sum is σ = 701661408. Its totient is φ = 701661406.

The previous prime is 701661403. The next prime is 701661421. The reversal of 701661407 is 704166107.

It is a happy number.

701661407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 701661407 - 2² = 701661403 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (701661403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350830703 + 350830704.

It is an arithmetic number, because the mean of its divisors is an integer number (350830704).

Almost surely, 2^701661407 is an apocalyptic number.

701661407 is a deficient number, since it is larger than the sum of its proper divisors (1).

701661407 is an equidigital number, since it uses as much as digits as its factorization.

701661407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 701661407 is about 26488.8921436892. The cubic root of 701661407 is about 888.6059085927.

The spelling of 701661407 in words is "seven hundred one million, six hundred sixty-one thousand, four hundred seven".