70729049 has 2 divisors, whose sum is σ = 70729050. Its totient is φ = 70729048.

The previous prime is 70729037. The next prime is 70729063. The reversal of 70729049 is 94092707.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53655625 + 17073424 = 7325^2 + 4132^2 .

It is a cyclic number.

It is not a de Polignac number, because 70729049 - 2²⁰ = 69680473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70729069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35364524 + 35364525.

It is an arithmetic number, because the mean of its divisors is an integer number (35364525).

Almost surely, 2^70729049 is an apocalyptic number.

It is an amenable number.

70729049 is a deficient number, since it is larger than the sum of its proper divisors (1).

70729049 is an equidigital number, since it uses as much as digits as its factorization.

70729049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 70729049 is about 8410.0564207382. The cubic root of 70729049 is about 413.5543622878.

The spelling of 70729049 in words is "seventy million, seven hundred twenty-nine thousand, forty-nine".