73974541 has 2 divisors, whose sum is σ = 73974542. Its totient is φ = 73974540.

The previous prime is 73974539. The next prime is 73974559. The reversal of 73974541 is 14547937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67996516 + 5978025 = 8246^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 73974541 - 2¹ = 73974539 is a prime.

Together with 73974539, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 73974494 and 73974503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73974841) 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, 36987270 + 36987271.

It is an arithmetic number, because the mean of its divisors is an integer number (36987271).

Almost surely, 2^73974541 is an apocalyptic number.

It is an amenable number.

73974541 is a deficient number, since it is larger than the sum of its proper divisors (1).

73974541 is an equidigital number, since it uses as much as digits as its factorization.

73974541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 73974541 is about 8600.8453654277. The cubic root of 73974541 is about 419.7854932602.

The spelling of 73974541 in words is "seventy-three million, nine hundred seventy-four thousand, five hundred forty-one".