73478849 has 2 divisors, whose sum is σ = 73478850. Its totient is φ = 73478848.

The previous prime is 73478843. The next prime is 73478857. The reversal of 73478849 is 94887437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70896400 + 2582449 = 8420^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 73478849 - 2⁸ = 73478593 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 73478797 and 73478806.

It is not a weakly prime, because it can be changed into another prime (73478843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36739424 + 36739425.

It is an arithmetic number, because the mean of its divisors is an integer number (36739425).

Almost surely, 2^73478849 is an apocalyptic number.

It is an amenable number.

73478849 is a deficient number, since it is larger than the sum of its proper divisors (1).

73478849 is an equidigital number, since it uses as much as digits as its factorization.

73478849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 50.

The square root of 73478849 is about 8571.9804596138. The cubic root of 73478849 is about 418.8457518023.

The spelling of 73478849 in words is "seventy-three million, four hundred seventy-eight thousand, eight hundred forty-nine".