73287457 has 2 divisors, whose sum is σ = 73287458. Its totient is φ = 73287456.

The previous prime is 73287451. The next prime is 73287463. The reversal of 73287457 is 75478237.

It is a balanced prime because it is at equal distance from previous prime (73287451) and next prime (73287463).

It can be written as a sum of positive squares in only one way, i.e., 73256481 + 30976 = 8559^2 + 176^2 .

It is a cyclic number.

It is not a de Polignac number, because 73287457 - 2¹⁵ = 73254689 is a prime.

It is equal to p_4299874 and since 73287457 and 4299874 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (73287451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36643728 + 36643729.

It is an arithmetic number, because the mean of its divisors is an integer number (36643729).

Almost surely, 2^73287457 is an apocalyptic number.

It is an amenable number.

73287457 is a deficient number, since it is larger than the sum of its proper divisors (1).

73287457 is an equidigital number, since it uses as much as digits as its factorization.

73287457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 329280, while the sum is 43.

The square root of 73287457 is about 8560.8093659420. The cubic root of 73287457 is about 418.4817766379.

The spelling of 73287457 in words is "seventy-three million, two hundred eighty-seven thousand, four hundred fifty-seven".