70253437 has 2 divisors, whose sum is σ = 70253438. Its totient is φ = 70253436.

The previous prime is 70253413. The next prime is 70253467. The reversal of 70253437 is 73435207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70207641 + 45796 = 8379^2 + 214^2 .

It is an emirp because it is prime and its reverse (73435207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70253437 - 2¹⁵ = 70220669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70253399 and 70253408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70253467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35126718 + 35126719.

It is an arithmetic number, because the mean of its divisors is an integer number (35126719).

Almost surely, 2^70253437 is an apocalyptic number.

It is an amenable number.

70253437 is a deficient number, since it is larger than the sum of its proper divisors (1).

70253437 is an equidigital number, since it uses as much as digits as its factorization.

70253437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 70253437 is about 8381.7323388426. The cubic root of 70253437 is about 412.6253053052.

The spelling of 70253437 in words is "seventy million, two hundred fifty-three thousand, four hundred thirty-seven".