73404377 has 2 divisors, whose sum is σ = 73404378. Its totient is φ = 73404376.

The previous prime is 73404343. The next prime is 73404379. The reversal of 73404377 is 77340437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39891856 + 33512521 = 6316^2 + 5789^2 .

It is an emirp because it is prime and its reverse (77340437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73404377 - 2⁶ = 73404313 is a prime.

Together with 73404379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73404379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36702188 + 36702189.

It is an arithmetic number, because the mean of its divisors is an integer number (36702189).

Almost surely, 2^73404377 is an apocalyptic number.

It is an amenable number.

73404377 is a deficient number, since it is larger than the sum of its proper divisors (1).

73404377 is an equidigital number, since it uses as much as digits as its factorization.

73404377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 35.

The square root of 73404377 is about 8567.6354380891. The cubic root of 73404377 is about 418.7042016594.

The spelling of 73404377 in words is "seventy-three million, four hundred four thousand, three hundred seventy-seven".