70997449 has 2 divisors, whose sum is σ = 70997450. Its totient is φ = 70997448.

The previous prime is 70997417. The next prime is 70997461. The reversal of 70997449 is 94479907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66015625 + 4981824 = 8125^2 + 2232^2 .

It is a cyclic number.

It is not a de Polignac number, because 70997449 - 2⁵ = 70997417 is a prime.

It is not a weakly prime, because it can be changed into another prime (70997489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35498724 + 35498725.

It is an arithmetic number, because the mean of its divisors is an integer number (35498725).

Almost surely, 2^70997449 is an apocalyptic number.

It is an amenable number.

70997449 is a deficient number, since it is larger than the sum of its proper divisors (1).

70997449 is an equidigital number, since it uses as much as digits as its factorization.

70997449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 70997449 is about 8425.9983978161. The cubic root of 70997449 is about 414.0768156218.

The spelling of 70997449 in words is "seventy million, nine hundred ninety-seven thousand, four hundred forty-nine".