70009477 has 2 divisors, whose sum is σ = 70009478. Its totient is φ = 70009476.

The previous prime is 70009441. The next prime is 70009481. The reversal of 70009477 is 77490007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46253601 + 23755876 = 6801^2 + 4874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70009477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70009487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35004738 + 35004739.

It is an arithmetic number, because the mean of its divisors is an integer number (35004739).

Almost surely, 2^70009477 is an apocalyptic number.

It is an amenable number.

70009477 is a deficient number, since it is larger than the sum of its proper divisors (1).

70009477 is an equidigital number, since it uses as much as digits as its factorization.

70009477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 70009477 is about 8367.1666052494. The cubic root of 70009477 is about 412.1471279134.

The spelling of 70009477 in words is "seventy million, nine thousand, four hundred seventy-seven".