73847401 has 2 divisors, whose sum is σ = 73847402. Its totient is φ = 73847400.

The previous prime is 73847399. The next prime is 73847429. The reversal of 73847401 is 10474837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42263001 + 31584400 = 6501^2 + 5620^2 .

It is a cyclic number.

It is not a de Polignac number, because 73847401 - 2¹ = 73847399 is a prime.

Together with 73847399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73847491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36923700 + 36923701.

It is an arithmetic number, because the mean of its divisors is an integer number (36923701).

Almost surely, 2^73847401 is an apocalyptic number.

It is an amenable number.

73847401 is a deficient number, since it is larger than the sum of its proper divisors (1).

73847401 is an equidigital number, since it uses as much as digits as its factorization.

73847401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 73847401 is about 8593.4510529821. The cubic root of 73847401 is about 419.5448603224.

The spelling of 73847401 in words is "seventy-three million, eight hundred forty-seven thousand, four hundred one".