70331029 has 2 divisors, whose sum is σ = 70331030. Its totient is φ = 70331028.

The previous prime is 70331021. The next prime is 70331059. The reversal of 70331029 is 92013307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66422500 + 3908529 = 8150^2 + 1977^2 .

It is a cyclic number.

It is not a de Polignac number, because 70331029 - 2³ = 70331021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70330994 and 70331012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70331021) 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, 35165514 + 35165515.

It is an arithmetic number, because the mean of its divisors is an integer number (35165515).

Almost surely, 2^70331029 is an apocalyptic number.

It is an amenable number.

70331029 is a deficient number, since it is larger than the sum of its proper divisors (1).

70331029 is an equidigital number, since it uses as much as digits as its factorization.

70331029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 70331029 is about 8386.3596989397. The cubic root of 70331029 is about 412.7771585779. Note that the first 3 decimals are identical.

The spelling of 70331029 in words is "seventy million, three hundred thirty-one thousand, twenty-nine".