71879611 has 2 divisors, whose sum is σ = 71879612. Its totient is φ = 71879610.

The previous prime is 71879557. The next prime is 71879627. The reversal of 71879611 is 11697817.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71879611 - 2¹³ = 71871419 is a prime.

It is a super-2 number, since 2×71879611² = 10333356955022642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71879681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35939805 + 35939806.

It is an arithmetic number, because the mean of its divisors is an integer number (35939806).

Almost surely, 2^71879611 is an apocalyptic number.

71879611 is a deficient number, since it is larger than the sum of its proper divisors (1).

71879611 is an equidigital number, since it uses as much as digits as its factorization.

71879611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 40.

The square root of 71879611 is about 8478.1844164892. The cubic root of 71879611 is about 415.7847656160.

The spelling of 71879611 in words is "seventy-one million, eight hundred seventy-nine thousand, six hundred eleven".