74000749 has 2 divisors, whose sum is σ = 74000750. Its totient is φ = 74000748.

The previous prime is 74000723. The next prime is 74000753. The reversal of 74000749 is 94700047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39778249 + 34222500 = 6307^2 + 5850^2 .

It is a cyclic number.

It is not a de Polignac number, because 74000749 - 2¹³ = 73992557 is a prime.

It is a super-2 number, since 2×74000749² = 10952221705122002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74000749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74000789) 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, 37000374 + 37000375.

It is an arithmetic number, because the mean of its divisors is an integer number (37000375).

Almost surely, 2^74000749 is an apocalyptic number.

It is an amenable number.

74000749 is a deficient number, since it is larger than the sum of its proper divisors (1).

74000749 is an equidigital number, since it uses as much as digits as its factorization.

74000749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 74000749 is about 8602.3688016732. The cubic root of 74000749 is about 419.8350618418.

It can be divided in two parts, 7400074 and 9, that multiplied together give a palindrome (66600666).

The spelling of 74000749 in words is "seventy-four million, seven hundred forty-nine", and thus it is an aban number.