70016449 has 2 divisors, whose sum is σ = 70016450. Its totient is φ = 70016448.

The previous prime is 70016431. The next prime is 70016461. The reversal of 70016449 is 94461007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68145025 + 1871424 = 8255^2 + 1368^2 .

It is a cyclic number.

It is not a de Polignac number, because 70016449 - 2⁹ = 70015937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70016449.

It is not a weakly prime, because it can be changed into another prime (70026449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35008224 + 35008225.

It is an arithmetic number, because the mean of its divisors is an integer number (35008225).

Almost surely, 2^70016449 is an apocalyptic number.

It is an amenable number.

70016449 is a deficient number, since it is larger than the sum of its proper divisors (1).

70016449 is an equidigital number, since it uses as much as digits as its factorization.

70016449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 70016449 is about 8367.5832233686. The cubic root of 70016449 is about 412.1608088916.

The spelling of 70016449 in words is "seventy million, sixteen thousand, four hundred forty-nine".