71343949 has 2 divisors, whose sum is σ = 71343950. Its totient is φ = 71343948.

The previous prime is 71343931. The next prime is 71343967. The reversal of 71343949 is 94934317.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (71343931) and next prime (71343967).

It can be written as a sum of positive squares in only one way, i.e., 48399849 + 22944100 = 6957^2 + 4790^2 .

It is a cyclic number.

It is not a de Polignac number, because 71343949 - 2¹¹ = 71341901 is a prime.

It is a super-3 number, since 3×71343949³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71343919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35671974 + 35671975.

It is an arithmetic number, because the mean of its divisors is an integer number (35671975).

Almost surely, 2^71343949 is an apocalyptic number.

It is an amenable number.

71343949 is a deficient number, since it is larger than the sum of its proper divisors (1).

71343949 is an equidigital number, since it uses as much as digits as its factorization.

71343949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 40.

The square root of 71343949 is about 8446.5347332501. The cubic root of 71343949 is about 414.7493507496.

The spelling of 71343949 in words is "seventy-one million, three hundred forty-three thousand, nine hundred forty-nine".