74098949 has 2 divisors, whose sum is σ = 74098950. Its totient is φ = 74098948.

The previous prime is 74098943. The next prime is 74098951. The reversal of 74098949 is 94989047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56400100 + 17698849 = 7510^2 + 4207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74098949 is a prime.

It is a Sophie Germain prime.

Together with 74098951, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74098897 and 74098906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74098943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37049474 + 37049475.

It is an arithmetic number, because the mean of its divisors is an integer number (37049475).

Almost surely, 2^74098949 is an apocalyptic number.

It is an amenable number.

74098949 is a deficient number, since it is larger than the sum of its proper divisors (1).

74098949 is an equidigital number, since it uses as much as digits as its factorization.

74098949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 74098949 is about 8608.0746395463. The cubic root of 74098949 is about 420.0206887012.

The spelling of 74098949 in words is "seventy-four million, ninety-eight thousand, nine hundred forty-nine".