74985377 has 2 divisors, whose sum is σ = 74985378. Its totient is φ = 74985376.

The previous prime is 74985349. The next prime is 74985397. The reversal of 74985377 is 77358947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73547776 + 1437601 = 8576^2 + 1199^2 .

It is an emirp because it is prime and its reverse (77358947) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74985377 is a prime.

It is a super-3 number, since 3×74985377³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (74985307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37492688 + 37492689.

It is an arithmetic number, because the mean of its divisors is an integer number (37492689).

Almost surely, 2^74985377 is an apocalyptic number.

It is an amenable number.

74985377 is a deficient number, since it is larger than the sum of its proper divisors (1).

74985377 is an equidigital number, since it uses as much as digits as its factorization.

74985377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1481760, while the sum is 50.

The square root of 74985377 is about 8659.4097373897. The cubic root of 74985377 is about 421.6889230564.

The spelling of 74985377 in words is "seventy-four million, nine hundred eighty-five thousand, three hundred seventy-seven".