71574401 has 2 divisors, whose sum is σ = 71574402. Its totient is φ = 71574400.

The previous prime is 71574343. The next prime is 71574409. The reversal of 71574401 is 10447517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67634176 + 3940225 = 8224^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 71574401 - 2⁶ = 71574337 is a prime.

It is not a weakly prime, because it can be changed into another prime (71574409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35787200 + 35787201.

It is an arithmetic number, because the mean of its divisors is an integer number (35787201).

Almost surely, 2^71574401 is an apocalyptic number.

It is an amenable number.

71574401 is a deficient number, since it is larger than the sum of its proper divisors (1).

71574401 is an equidigital number, since it uses as much as digits as its factorization.

71574401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 71574401 is about 8460.1655421156. The cubic root of 71574401 is about 415.1954389859.

The spelling of 71574401 in words is "seventy-one million, five hundred seventy-four thousand, four hundred one".