74956789 has 2 divisors, whose sum is σ = 74956790. Its totient is φ = 74956788.

The previous prime is 74956771. The next prime is 74956807. The reversal of 74956789 is 98765947.

It is a balanced prime because it is at equal distance from previous prime (74956771) and next prime (74956807).

It can be written as a sum of positive squares in only one way, i.e., 40640625 + 34316164 = 6375^2 + 5858^2 .

It is a cyclic number.

It is not a de Polignac number, because 74956789 - 2¹¹ = 74954741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74956489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37478394 + 37478395.

It is an arithmetic number, because the mean of its divisors is an integer number (37478395).

Almost surely, 2^74956789 is an apocalyptic number.

It is an amenable number.

74956789 is a deficient number, since it is larger than the sum of its proper divisors (1).

74956789 is an equidigital number, since it uses as much as digits as its factorization.

74956789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 55.

The square root of 74956789 is about 8657.7588901517. The cubic root of 74956789 is about 421.6353269387.

The spelling of 74956789 in words is "seventy-four million, nine hundred fifty-six thousand, seven hundred eighty-nine".