70221037 has 2 divisors, whose sum is σ = 70221038. Its totient is φ = 70221036.

The previous prime is 70221029. The next prime is 70221061. The reversal of 70221037 is 73012207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44475561 + 25745476 = 6669^2 + 5074^2 .

It is a cyclic number.

It is not a de Polignac number, because 70221037 - 2³ = 70221029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70220999 and 70221017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70221007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35110518 + 35110519.

It is an arithmetic number, because the mean of its divisors is an integer number (35110519).

Almost surely, 2^70221037 is an apocalyptic number.

It is an amenable number.

70221037 is a deficient number, since it is larger than the sum of its proper divisors (1).

70221037 is an equidigital number, since it uses as much as digits as its factorization.

70221037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 70221037 is about 8379.7993412730. The cubic root of 70221037 is about 412.5618630206.

The spelling of 70221037 in words is "seventy million, two hundred twenty-one thousand, thirty-seven".