70172629 has 2 divisors, whose sum is σ = 70172630. Its totient is φ = 70172628.

The previous prime is 70172611. The next prime is 70172671. The reversal of 70172629 is 92627107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58599025 + 11573604 = 7655^2 + 3402^2 .

It is a cyclic number.

It is not a de Polignac number, because 70172629 - 2¹⁷ = 70041557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70172594 and 70172603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70173629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35086314 + 35086315.

It is an arithmetic number, because the mean of its divisors is an integer number (35086315).

Almost surely, 2^70172629 is an apocalyptic number.

It is an amenable number.

70172629 is a deficient number, since it is larger than the sum of its proper divisors (1).

70172629 is an equidigital number, since it uses as much as digits as its factorization.

70172629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 70172629 is about 8376.9104686633. The cubic root of 70172629 is about 412.4670391784.

The spelling of 70172629 in words is "seventy million, one hundred seventy-two thousand, six hundred twenty-nine".