70988947 has 2 divisors, whose sum is σ = 70988948. Its totient is φ = 70988946.

The previous prime is 70988899. The next prime is 70989007. The reversal of 70988947 is 74988907.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70988947 - 2²³ = 62600339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70988894 and 70988903.

It is not a weakly prime, because it can be changed into another prime (70988347) 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, 35494473 + 35494474.

It is an arithmetic number, because the mean of its divisors is an integer number (35494474).

Almost surely, 2^70988947 is an apocalyptic number.

70988947 is a deficient number, since it is larger than the sum of its proper divisors (1).

70988947 is an equidigital number, since it uses as much as digits as its factorization.

70988947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 70988947 is about 8425.4938727650. The cubic root of 70988947 is about 414.0602862879.

The spelling of 70988947 in words is "seventy million, nine hundred eighty-eight thousand, nine hundred forty-seven".