71750389 has 2 divisors, whose sum is σ = 71750390. Its totient is φ = 71750388.

The previous prime is 71750377. The next prime is 71750401. The reversal of 71750389 is 98305717.

It is a balanced prime because it is at equal distance from previous prime (71750377) and next prime (71750401).

It can be written as a sum of positive squares in only one way, i.e., 71267364 + 483025 = 8442^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 71750389 - 2¹³ = 71742197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71750689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35875194 + 35875195.

It is an arithmetic number, because the mean of its divisors is an integer number (35875195).

Almost surely, 2^71750389 is an apocalyptic number.

It is an amenable number.

71750389 is a deficient number, since it is larger than the sum of its proper divisors (1).

71750389 is an equidigital number, since it uses as much as digits as its factorization.

71750389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 71750389 is about 8470.5601349616. The cubic root of 71750389 is about 415.5354563086.

The spelling of 71750389 in words is "seventy-one million, seven hundred fifty thousand, three hundred eighty-nine".