1701279961 has 2 divisors, whose sum is σ = 1701279962. Its totient is φ = 1701279960.

The previous prime is 1701279959. The next prime is 1701279977. The reversal of 1701279961 is 1699721071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1084055625 + 617224336 = 32925^2 + 24844^2 .

It is a cyclic number.

It is not a de Polignac number, because 1701279961 - 2¹ = 1701279959 is a prime.

Together with 1701279959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1701279911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 850639980 + 850639981.

It is an arithmetic number, because the mean of its divisors is an integer number (850639981).

Almost surely, 2^1701279961 is an apocalyptic number.

It is an amenable number.

1701279961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1701279961 is an equidigital number, since it uses as much as digits as its factorization.

1701279961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 43.

The square root of 1701279961 is about 41246.5751426709. The cubic root of 1701279961 is about 1193.7826485374.

The spelling of 1701279961 in words is "one billion, seven hundred one million, two hundred seventy-nine thousand, nine hundred sixty-one".