70935961 has 2 divisors, whose sum is σ = 70935962. Its totient is φ = 70935960.

The previous prime is 70935959. The next prime is 70935973. The reversal of 70935961 is 16953907.

70935961 = 5955² + 5956².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35473936 + 35462025 = 5956^2 + 5955^2 .

It is a cyclic number.

It is not a de Polignac number, because 70935961 - 2¹ = 70935959 is a prime.

Together with 70935959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70935941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35467980 + 35467981.

It is an arithmetic number, because the mean of its divisors is an integer number (35467981).

Almost surely, 2^70935961 is an apocalyptic number.

70935961 is the 5956-th centered square number.

It is an amenable number.

70935961 is a deficient number, since it is larger than the sum of its proper divisors (1).

70935961 is an equidigital number, since it uses as much as digits as its factorization.

70935961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 70935961 is about 8422.3489003959. The cubic root of 70935961 is about 413.9572427390.

The spelling of 70935961 in words is "seventy million, nine hundred thirty-five thousand, nine hundred sixty-one".