71440367 has 2 divisors, whose sum is σ = 71440368. Its totient is φ = 71440366.

The previous prime is 71440351. The next prime is 71440381. The reversal of 71440367 is 76304417.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71440367 - 2⁴ = 71440351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71440387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35720183 + 35720184.

It is an arithmetic number, because the mean of its divisors is an integer number (35720184).

Almost surely, 2^71440367 is an apocalyptic number.

71440367 is a deficient number, since it is larger than the sum of its proper divisors (1).

71440367 is an equidigital number, since it uses as much as digits as its factorization.

71440367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 71440367 is about 8452.2403538943. The cubic root of 71440367 is about 414.9361047417.

The spelling of 71440367 in words is "seventy-one million, four hundred forty thousand, three hundred sixty-seven".