70985449 has 2 divisors, whose sum is σ = 70985450. Its totient is φ = 70985448.

The previous prime is 70985441. The next prime is 70985459. The reversal of 70985449 is 94458907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 6985449 = 8000^2 + 2643^2 .

It is a cyclic number.

It is not a de Polignac number, because 70985449 - 2³ = 70985441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70985399 and 70985408.

It is not a weakly prime, because it can be changed into another prime (70985441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35492724 + 35492725.

It is an arithmetic number, because the mean of its divisors is an integer number (35492725).

Almost surely, 2^70985449 is an apocalyptic number.

It is an amenable number.

70985449 is a deficient number, since it is larger than the sum of its proper divisors (1).

70985449 is an equidigital number, since it uses as much as digits as its factorization.

70985449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 70985449 is about 8425.2862859371. The cubic root of 70985449 is about 414.0534851978.

The spelling of 70985449 in words is "seventy million, nine hundred eighty-five thousand, four hundred forty-nine".