705670001 has 2 divisors, whose sum is σ = 705670002. Its totient is φ = 705670000.

The previous prime is 705669997. The next prime is 705670027. The reversal of 705670001 is 100076507.

It is an a-pointer prime, because the next prime (705670027) can be obtained adding 705670001 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544989025 + 160680976 = 23345^2 + 12676^2 .

It is a cyclic number.

It is not a de Polignac number, because 705670001 - 2² = 705669997 is a prime.

It is a super-2 number, since 2×705670001² = 995940300622680002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (705670501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352835000 + 352835001.

It is an arithmetic number, because the mean of its divisors is an integer number (352835001).

Almost surely, 2^705670001 is an apocalyptic number.

It is an amenable number.

705670001 is a deficient number, since it is larger than the sum of its proper divisors (1).

705670001 is an equidigital number, since it uses as much as digits as its factorization.

705670001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 705670001 is about 26564.4499472509. The cubic root of 705670001 is about 890.2948991190.

The spelling of 705670001 in words is "seven hundred five million, six hundred seventy thousand, one".