73413257 has 2 divisors, whose sum is σ = 73413258. Its totient is φ = 73413256.

The previous prime is 73413229. The next prime is 73413269. The reversal of 73413257 is 75231437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69488896 + 3924361 = 8336^2 + 1981^2 .

It is a cyclic number.

It is not a de Polignac number, because 73413257 - 2¹⁰ = 73412233 is a prime.

It is not a weakly prime, because it can be changed into another prime (73416257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36706628 + 36706629.

It is an arithmetic number, because the mean of its divisors is an integer number (36706629).

Almost surely, 2^73413257 is an apocalyptic number.

It is an amenable number.

73413257 is a deficient number, since it is larger than the sum of its proper divisors (1).

73413257 is an equidigital number, since it uses as much as digits as its factorization.

73413257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 32.

The square root of 73413257 is about 8568.1536517502. The cubic root of 73413257 is about 418.7210850458.

The spelling of 73413257 in words is "seventy-three million, four hundred thirteen thousand, two hundred fifty-seven".