73948421 has 2 divisors, whose sum is σ = 73948422. Its totient is φ = 73948420.

The previous prime is 73948411. The next prime is 73948477. The reversal of 73948421 is 12484937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 2292196 = 8465^2 + 1514^2 .

It is a cyclic number.

It is not a de Polignac number, because 73948421 - 2¹⁴ = 73932037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73948411) 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, 36974210 + 36974211.

It is an arithmetic number, because the mean of its divisors is an integer number (36974211).

Almost surely, 2^73948421 is an apocalyptic number.

It is an amenable number.

73948421 is a deficient number, since it is larger than the sum of its proper divisors (1).

73948421 is an equidigital number, since it uses as much as digits as its factorization.

73948421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 73948421 is about 8599.3267759750. The cubic root of 73948421 is about 419.7360794677.

The spelling of 73948421 in words is "seventy-three million, nine hundred forty-eight thousand, four hundred twenty-one".