71378803 has 2 divisors, whose sum is σ = 71378804. Its totient is φ = 71378802.

The previous prime is 71378789. The next prime is 71378819. The reversal of 71378803 is 30887317.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71378803 is a prime.

It is not a weakly prime, because it can be changed into another prime (71378843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35689401 + 35689402.

It is an arithmetic number, because the mean of its divisors is an integer number (35689402).

Almost surely, 2^71378803 is an apocalyptic number.

71378803 is a deficient number, since it is larger than the sum of its proper divisors (1).

71378803 is an equidigital number, since it uses as much as digits as its factorization.

71378803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 71378803 is about 8448.5976942922. The cubic root of 71378803 is about 414.8168795809.

The spelling of 71378803 in words is "seventy-one million, three hundred seventy-eight thousand, eight hundred three".