65447401 has 2 divisors, whose sum is σ = 65447402. Its totient is φ = 65447400.

The previous prime is 65447377. The next prime is 65447407. The reversal of 65447401 is 10474456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65221776 + 225625 = 8076^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 65447401 - 2⁷ = 65447273 is a prime.

It is not a weakly prime, because it can be changed into another prime (65447407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32723700 + 32723701.

It is an arithmetic number, because the mean of its divisors is an integer number (32723701).

Almost surely, 2^65447401 is an apocalyptic number.

It is an amenable number.

65447401 is a deficient number, since it is larger than the sum of its proper divisors (1).

65447401 is an equidigital number, since it uses as much as digits as its factorization.

65447401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 65447401 is about 8089.9567984013. The cubic root of 65447401 is about 402.9929682473.

The spelling of 65447401 in words is "sixty-five million, four hundred forty-seven thousand, four hundred one".