70449893 has 2 divisors, whose sum is σ = 70449894. Its totient is φ = 70449892.

The previous prime is 70449881. The next prime is 70449901. The reversal of 70449893 is 39894407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43586404 + 26863489 = 6602^2 + 5183^2 .

It is a cyclic number.

It is not a de Polignac number, because 70449893 - 2⁴ = 70449877 is a prime.

It is a super-2 number, since 2×70449893² = 9926374847422898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70449833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35224946 + 35224947.

It is an arithmetic number, because the mean of its divisors is an integer number (35224947).

Almost surely, 2^70449893 is an apocalyptic number.

It is an amenable number.

70449893 is a deficient number, since it is larger than the sum of its proper divisors (1).

70449893 is an equidigital number, since it uses as much as digits as its factorization.

70449893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 70449893 is about 8393.4434530769. The cubic root of 70449893 is about 413.0095677538.

The spelling of 70449893 in words is "seventy million, four hundred forty-nine thousand, eight hundred ninety-three".