74061749 has 2 divisors, whose sum is σ = 74061750. Its totient is φ = 74061748.

The previous prime is 74061727. The next prime is 74061751. The reversal of 74061749 is 94716047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55726225 + 18335524 = 7465^2 + 4282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74061749 is a prime.

Together with 74061751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74061709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37030874 + 37030875.

It is an arithmetic number, because the mean of its divisors is an integer number (37030875).

Almost surely, 2^74061749 is an apocalyptic number.

It is an amenable number.

74061749 is a deficient number, since it is larger than the sum of its proper divisors (1).

74061749 is an equidigital number, since it uses as much as digits as its factorization.

74061749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 74061749 is about 8605.9136063523. The cubic root of 74061749 is about 419.9503890759.

The spelling of 74061749 in words is "seventy-four million, sixty-one thousand, seven hundred forty-nine".