73607531 has 2 divisors, whose sum is σ = 73607532. Its totient is φ = 73607530.

The previous prime is 73607509. The next prime is 73607533. The reversal of 73607531 is 13570637.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73607531 is a prime.

It is a super-2 number, since 2×73607531² = 10836137239831922, which contains 22 as substring.

Together with 73607533, 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 (73607533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36803765 + 36803766.

It is an arithmetic number, because the mean of its divisors is an integer number (36803766).

Almost surely, 2^73607531 is an apocalyptic number.

73607531 is a deficient number, since it is larger than the sum of its proper divisors (1).

73607531 is an equidigital number, since it uses as much as digits as its factorization.

73607531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 73607531 is about 8579.4831429405. The cubic root of 73607531 is about 419.0901145312.

The spelling of 73607531 in words is "seventy-three million, six hundred seven thousand, five hundred thirty-one".