70001611 has 2 divisors, whose sum is σ = 70001612. Its totient is φ = 70001610.

The previous prime is 70001599. The next prime is 70001629. The reversal of 70001611 is 11610007.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70001611 - 2⁷ = 70001483 is a prime.

It is not a weakly prime, because it can be changed into another prime (70001011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35000805 + 35000806.

It is an arithmetic number, because the mean of its divisors is an integer number (35000806).

Almost surely, 2^70001611 is an apocalyptic number.

70001611 is a deficient number, since it is larger than the sum of its proper divisors (1).

70001611 is an equidigital number, since it uses as much as digits as its factorization.

70001611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 70001611 is about 8366.6965404513. The cubic root of 70001611 is about 412.1316915712.

Adding to 70001611 its reverse (11610007), we get a palindrome (81611618).

The spelling of 70001611 in words is "seventy million, one thousand, six hundred eleven".