70533971 has 2 divisors, whose sum is σ = 70533972. Its totient is φ = 70533970.

The previous prime is 70533949. The next prime is 70534001. The reversal of 70533971 is 17933507.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70533971 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70533941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35266985 + 35266986.

It is an arithmetic number, because the mean of its divisors is an integer number (35266986).

Almost surely, 2^70533971 is an apocalyptic number.

70533971 is a deficient number, since it is larger than the sum of its proper divisors (1).

70533971 is an equidigital number, since it uses as much as digits as its factorization.

70533971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 70533971 is about 8398.4505118504. The cubic root of 70533971 is about 413.1738036950.

The spelling of 70533971 in words is "seventy million, five hundred thirty-three thousand, nine hundred seventy-one".