70244437 has 2 divisors, whose sum is σ = 70244438. Its totient is φ = 70244436.

The previous prime is 70244431. The next prime is 70244441. The reversal of 70244437 is 73444207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66732561 + 3511876 = 8169^2 + 1874^2 .

It is an emirp because it is prime and its reverse (73444207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70244437 - 2¹⁹ = 69720149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70244399 and 70244408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70244431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35122218 + 35122219.

It is an arithmetic number, because the mean of its divisors is an integer number (35122219).

Almost surely, 2^70244437 is an apocalyptic number.

It is an amenable number.

70244437 is a deficient number, since it is larger than the sum of its proper divisors (1).

70244437 is an equidigital number, since it uses as much as digits as its factorization.

70244437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 70244437 is about 8381.1954397926. The cubic root of 70244437 is about 412.6076844053.

The spelling of 70244437 in words is "seventy million, two hundred forty-four thousand, four hundred thirty-seven".