71380801 has 2 divisors, whose sum is σ = 71380802. Its totient is φ = 71380800.

The previous prime is 71380781. The next prime is 71380811. The reversal of 71380801 is 10808317.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69555600 + 1825201 = 8340^2 + 1351^2 .

It is a cyclic number.

It is not a de Polignac number, because 71380801 - 2²¹ = 69283649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71380801.

It is not a weakly prime, because it can be changed into another prime (71380811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35690400 + 35690401.

It is an arithmetic number, because the mean of its divisors is an integer number (35690401).

Almost surely, 2^71380801 is an apocalyptic number.

It is an amenable number.

71380801 is a deficient number, since it is larger than the sum of its proper divisors (1).

71380801 is an equidigital number, since it uses as much as digits as its factorization.

71380801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 71380801 is about 8448.7159379399. The cubic root of 71380801 is about 414.8207499941.

The spelling of 71380801 in words is "seventy-one million, three hundred eighty thousand, eight hundred one".