70270961 has 2 divisors, whose sum is σ = 70270962. Its totient is φ = 70270960.

The previous prime is 70270939. The next prime is 70270997. The reversal of 70270961 is 16907207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56911936 + 13359025 = 7544^2 + 3655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70270961 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (70270261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35135480 + 35135481.

It is an arithmetic number, because the mean of its divisors is an integer number (35135481).

Almost surely, 2^70270961 is an apocalyptic number.

It is an amenable number.

70270961 is a deficient number, since it is larger than the sum of its proper divisors (1).

70270961 is an equidigital number, since it uses as much as digits as its factorization.

70270961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 70270961 is about 8382.7776422854. Note that the first 3 decimals coincide. The cubic root of 70270961 is about 412.6596108378.

The spelling of 70270961 in words is "seventy million, two hundred seventy thousand, nine hundred sixty-one".