71476649 has 2 divisors, whose sum is σ = 71476650. Its totient is φ = 71476648.

The previous prime is 71476627. The next prime is 71476673. The reversal of 71476649 is 94667417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71233600 + 243049 = 8440^2 + 493^2 .

It is a cyclic number.

It is not a de Polignac number, because 71476649 - 2⁸ = 71476393 is a prime.

It is a super-2 number, since 2×71476649² = 10217822704538402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71476679) 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, 35738324 + 35738325.

It is an arithmetic number, because the mean of its divisors is an integer number (35738325).

Almost surely, 2^71476649 is an apocalyptic number.

It is an amenable number.

71476649 is a deficient number, since it is larger than the sum of its proper divisors (1).

71476649 is an equidigital number, since it uses as much as digits as its factorization.

71476649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 71476649 is about 8454.3863763138. The cubic root of 71476649 is about 415.0063365752.

The spelling of 71476649 in words is "seventy-one million, four hundred seventy-six thousand, six hundred forty-nine".