71675939 has 2 divisors, whose sum is σ = 71675940. Its totient is φ = 71675938.

The previous prime is 71675909. The next prime is 71675953. The reversal of 71675939 is 93957617.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71675939 - 2⁸ = 71675683 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71675893 and 71675902.

It is not a weakly prime, because it can be changed into another prime (71675909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35837969 + 35837970.

It is an arithmetic number, because the mean of its divisors is an integer number (35837970).

Almost surely, 2^71675939 is an apocalyptic number.

71675939 is a deficient number, since it is larger than the sum of its proper divisors (1).

71675939 is an equidigital number, since it uses as much as digits as its factorization.

71675939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 357210, while the sum is 47.

The square root of 71675939 is about 8466.1643617402. The cubic root of 71675939 is about 415.3916832386.

The spelling of 71675939 in words is "seventy-one million, six hundred seventy-five thousand, nine hundred thirty-nine".