70509029 has 2 divisors, whose sum is σ = 70509030. Its totient is φ = 70509028.

The previous prime is 70509017. The next prime is 70509067. The reversal of 70509029 is 92090507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64032004 + 6477025 = 8002^2 + 2545^2 .

It is a cyclic number.

It is not a de Polignac number, because 70509029 - 2¹⁶ = 70443493 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70508986 and 70509004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70509529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35254514 + 35254515.

It is an arithmetic number, because the mean of its divisors is an integer number (35254515).

Almost surely, 2^70509029 is an apocalyptic number.

It is an amenable number.

70509029 is a deficient number, since it is larger than the sum of its proper divisors (1).

70509029 is an equidigital number, since it uses as much as digits as its factorization.

70509029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 70509029 is about 8396.9654637851. The cubic root of 70509029 is about 413.1250962149.

The spelling of 70509029 in words is "seventy million, five hundred nine thousand, twenty-nine".