71057803 has 2 divisors, whose sum is σ = 71057804. Its totient is φ = 71057802.

The previous prime is 71057761. The next prime is 71057813. The reversal of 71057803 is 30875017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71057803 - 2¹³ = 71049611 is a prime.

It is a super-2 number, since 2×71057803² = 10098422734373618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71057813) 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, 35528901 + 35528902.

It is an arithmetic number, because the mean of its divisors is an integer number (35528902).

Almost surely, 2^71057803 is an apocalyptic number.

71057803 is a deficient number, since it is larger than the sum of its proper divisors (1).

71057803 is an equidigital number, since it uses as much as digits as its factorization.

71057803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 71057803 is about 8429.5790523608. The cubic root of 71057803 is about 414.1941161458.

The spelling of 71057803 in words is "seventy-one million, fifty-seven thousand, eight hundred three".