73657673 has 2 divisors, whose sum is σ = 73657674. Its totient is φ = 73657672.

The previous prime is 73657663. The next prime is 73657681. The reversal of 73657673 is 37675637.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38278969 + 35378704 = 6187^2 + 5948^2 .

It is a cyclic number.

It is not a de Polignac number, because 73657673 - 2⁶ = 73657609 is a prime.

It is not a weakly prime, because it can be changed into another prime (73657613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36828836 + 36828837.

It is an arithmetic number, because the mean of its divisors is an integer number (36828837).

Almost surely, 2^73657673 is an apocalyptic number.

It is an amenable number.

73657673 is a deficient number, since it is larger than the sum of its proper divisors (1).

73657673 is an equidigital number, since it uses as much as digits as its factorization.

73657673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 555660, while the sum is 44.

The square root of 73657673 is about 8582.4048494580. The cubic root of 73657673 is about 419.1852553699.

The spelling of 73657673 in words is "seventy-three million, six hundred fifty-seven thousand, six hundred seventy-three".