70445497 has 2 divisors, whose sum is σ = 70445498. Its totient is φ = 70445496.

The previous prime is 70445491. The next prime is 70445519. The reversal of 70445497 is 79454407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66896041 + 3549456 = 8179^2 + 1884^2 .

It is a cyclic number.

It is not a de Polignac number, because 70445497 - 2¹⁹ = 69921209 is a prime.

It is not a weakly prime, because it can be changed into another prime (70445491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35222748 + 35222749.

It is an arithmetic number, because the mean of its divisors is an integer number (35222749).

Almost surely, 2^70445497 is an apocalyptic number.

It is an amenable number.

70445497 is a deficient number, since it is larger than the sum of its proper divisors (1).

70445497 is an equidigital number, since it uses as much as digits as its factorization.

70445497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 70445497 is about 8393.1815779238. The cubic root of 70445497 is about 413.0009771194. Note that the first 3 decimals are identical.

The spelling of 70445497 in words is "seventy million, four hundred forty-five thousand, four hundred ninety-seven".