73570457 has 2 divisors, whose sum is σ = 73570458. Its totient is φ = 73570456.

The previous prime is 73570447. The next prime is 73570459. The reversal of 73570457 is 75407537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40208281 + 33362176 = 6341^2 + 5776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73570457 is a prime.

It is a super-2 number, since 2×73570457² = 10825224286377698, which contains 22 as substring.

Together with 73570459, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73570457.

It is not a weakly prime, because it can be changed into another prime (73570459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36785228 + 36785229.

It is an arithmetic number, because the mean of its divisors is an integer number (36785229).

Almost surely, 2^73570457 is an apocalyptic number.

It is an amenable number.

73570457 is a deficient number, since it is larger than the sum of its proper divisors (1).

73570457 is an equidigital number, since it uses as much as digits as its factorization.

73570457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102900, while the sum is 38.

The square root of 73570457 is about 8577.3222511458. The cubic root of 73570457 is about 419.0197414956.

The spelling of 73570457 in words is "seventy-three million, five hundred seventy thousand, four hundred fifty-seven".