71420803 has 2 divisors, whose sum is σ = 71420804. Its totient is φ = 71420802.

The previous prime is 71420771. The next prime is 71420827. The reversal of 71420803 is 30802417.

It is a strong prime.

It is an emirp because it is prime and its reverse (30802417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71420803 - 2⁵ = 71420771 is a prime.

It is a super-2 number, since 2×71420803² = 10201862202329618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71420873) 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, 35710401 + 35710402.

It is an arithmetic number, because the mean of its divisors is an integer number (35710402).

Almost surely, 2^71420803 is an apocalyptic number.

71420803 is a deficient number, since it is larger than the sum of its proper divisors (1).

71420803 is an equidigital number, since it uses as much as digits as its factorization.

71420803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 71420803 is about 8451.0829483564. The cubic root of 71420803 is about 414.8982244254.

The spelling of 71420803 in words is "seventy-one million, four hundred twenty thousand, eight hundred three".