73950421 has 2 divisors, whose sum is σ = 73950422. Its totient is φ = 73950420.

The previous prime is 73950419. The next prime is 73950473. The reversal of 73950421 is 12405937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73444900 + 505521 = 8570^2 + 711^2 .

It is a cyclic number.

It is not a de Polignac number, because 73950421 - 2¹ = 73950419 is a prime.

Together with 73950419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73954421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36975210 + 36975211.

It is an arithmetic number, because the mean of its divisors is an integer number (36975211).

Almost surely, 2^73950421 is an apocalyptic number.

It is an amenable number.

73950421 is a deficient number, since it is larger than the sum of its proper divisors (1).

73950421 is an equidigital number, since it uses as much as digits as its factorization.

73950421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 73950421 is about 8599.4430633617. The cubic root of 73950421 is about 419.7398634772.

The spelling of 73950421 in words is "seventy-three million, nine hundred fifty thousand, four hundred twenty-one".