70259921 has 2 divisors, whose sum is σ = 70259922. Its totient is φ = 70259920.

The previous prime is 70259909. The next prime is 70259933. The reversal of 70259921 is 12995207.

It is a balanced prime because it is at equal distance from previous prime (70259909) and next prime (70259933).

It can be written as a sum of positive squares in only one way, i.e., 53816896 + 16443025 = 7336^2 + 4055^2 .

It is a cyclic number.

It is not a de Polignac number, because 70259921 - 2¹⁰ = 70258897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70259951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35129960 + 35129961.

It is an arithmetic number, because the mean of its divisors is an integer number (35129961).

Almost surely, 2^70259921 is an apocalyptic number.

It is an amenable number.

70259921 is a deficient number, since it is larger than the sum of its proper divisors (1).

70259921 is an equidigital number, since it uses as much as digits as its factorization.

70259921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 70259921 is about 8382.1191234675. The cubic root of 70259921 is about 412.6379992520.

The spelling of 70259921 in words is "seventy million, two hundred fifty-nine thousand, nine hundred twenty-one".