70523449 has 2 divisors, whose sum is σ = 70523450. Its totient is φ = 70523448.

The previous prime is 70523437. The next prime is 70523489. The reversal of 70523449 is 94432507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61779600 + 8743849 = 7860^2 + 2957^2 .

It is a cyclic number.

It is not a de Polignac number, because 70523449 - 2¹³ = 70515257 is a prime.

It is not a weakly prime, because it can be changed into another prime (70523489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35261724 + 35261725.

It is an arithmetic number, because the mean of its divisors is an integer number (35261725).

Almost surely, 2^70523449 is an apocalyptic number.

It is an amenable number.

70523449 is a deficient number, since it is larger than the sum of its proper divisors (1).

70523449 is an equidigital number, since it uses as much as digits as its factorization.

70523449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 70523449 is about 8397.8240634107. The cubic root of 70523449 is about 413.1532574207.

It can be divided in two parts, 7052 and 3449, that added together give a palindrome (10501).

The spelling of 70523449 in words is "seventy million, five hundred twenty-three thousand, four hundred forty-nine".