70621211 has 2 divisors, whose sum is σ = 70621212. Its totient is φ = 70621210.

The previous prime is 70621189. The next prime is 70621219. The reversal of 70621211 is 11212607.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70621211 - 2¹⁴ = 70604827 is a prime.

It is not a weakly prime, because it can be changed into another prime (70621219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35310605 + 35310606.

It is an arithmetic number, because the mean of its divisors is an integer number (35310606).

Almost surely, 2^70621211 is an apocalyptic number.

70621211 is a deficient number, since it is larger than the sum of its proper divisors (1).

70621211 is an equidigital number, since it uses as much as digits as its factorization.

70621211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 70621211 is about 8403.6427220581. The cubic root of 70621211 is about 413.3440782991.

Adding to 70621211 its reverse (11212607), we get a palindrome (81833818).

The spelling of 70621211 in words is "seventy million, six hundred twenty-one thousand, two hundred eleven".