71735401 has 2 divisors, whose sum is σ = 71735402. Its totient is φ = 71735400.

The previous prime is 71735399. The next prime is 71735423. The reversal of 71735401 is 10453717.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65999376 + 5736025 = 8124^2 + 2395^2 .

It is a cyclic number.

It is not a de Polignac number, because 71735401 - 2¹ = 71735399 is a prime.

Together with 71735399, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 71735401.

It is not a weakly prime, because it can be changed into another prime (71735441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35867700 + 35867701.

It is an arithmetic number, because the mean of its divisors is an integer number (35867701).

Almost surely, 2^71735401 is an apocalyptic number.

It is an amenable number.

71735401 is a deficient number, since it is larger than the sum of its proper divisors (1).

71735401 is an equidigital number, since it uses as much as digits as its factorization.

71735401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 71735401 is about 8469.6753774864. The cubic root of 71735401 is about 415.5065204416.

The spelling of 71735401 in words is "seventy-one million, seven hundred thirty-five thousand, four hundred one".