74620757 has 2 divisors, whose sum is σ = 74620758. Its totient is φ = 74620756.

The previous prime is 74620747. The next prime is 74620789. The reversal of 74620757 is 75702647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48804196 + 25816561 = 6986^2 + 5081^2 .

It is a cyclic number.

It is not a de Polignac number, because 74620757 - 2¹⁴ = 74604373 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74620757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74620747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37310378 + 37310379.

It is an arithmetic number, because the mean of its divisors is an integer number (37310379).

Almost surely, 2^74620757 is an apocalyptic number.

It is an amenable number.

74620757 is a deficient number, since it is larger than the sum of its proper divisors (1).

74620757 is an equidigital number, since it uses as much as digits as its factorization.

74620757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 74620757 is about 8638.3306836448. The cubic root of 74620757 is about 421.0043179935.

The spelling of 74620757 in words is "seventy-four million, six hundred twenty thousand, seven hundred fifty-seven".