73654649 has 2 divisors, whose sum is σ = 73654650. Its totient is φ = 73654648.

The previous prime is 73654589. The next prime is 73654663. The reversal of 73654649 is 94645637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55651600 + 18003049 = 7460^2 + 4243^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73654649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73654699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36827324 + 36827325.

It is an arithmetic number, because the mean of its divisors is an integer number (36827325).

Almost surely, 2^73654649 is an apocalyptic number.

It is an amenable number.

73654649 is a deficient number, since it is larger than the sum of its proper divisors (1).

73654649 is an equidigital number, since it uses as much as digits as its factorization.

73654649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 44.

The square root of 73654649 is about 8582.2286732527. The cubic root of 73654649 is about 419.1795187710.

The spelling of 73654649 in words is "seventy-three million, six hundred fifty-four thousand, six hundred forty-nine".