71607953 has 2 divisors, whose sum is σ = 71607954. Its totient is φ = 71607952.

The previous prime is 71607937. The next prime is 71607959. The reversal of 71607953 is 35970617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68178049 + 3429904 = 8257^2 + 1852^2 .

It is a cyclic number.

It is not a de Polignac number, because 71607953 - 2⁴ = 71607937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71607959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35803976 + 35803977.

It is an arithmetic number, because the mean of its divisors is an integer number (35803977).

Almost surely, 2^71607953 is an apocalyptic number.

It is an amenable number.

71607953 is a deficient number, since it is larger than the sum of its proper divisors (1).

71607953 is an equidigital number, since it uses as much as digits as its factorization.

71607953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 71607953 is about 8462.1482497059. The cubic root of 71607953 is about 415.2603060379.

The spelling of 71607953 in words is "seventy-one million, six hundred seven thousand, nine hundred fifty-three".