73953361 has 2 divisors, whose sum is σ = 73953362. Its totient is φ = 73953360.

The previous prime is 73953353. The next prime is 73953367. The reversal of 73953361 is 16335937.

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., 73205136 + 748225 = 8556^2 + 865^2 .

It is an emirp because it is prime and its reverse (16335937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73953361 - 2³ = 73953353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73953361.

It is not a weakly prime, because it can be changed into another prime (73953367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36976680 + 36976681.

It is an arithmetic number, because the mean of its divisors is an integer number (36976681).

Almost surely, 2^73953361 is an apocalyptic number.

It is an amenable number.

73953361 is a deficient number, since it is larger than the sum of its proper divisors (1).

73953361 is an equidigital number, since it uses as much as digits as its factorization.

73953361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 37.

The square root of 73953361 is about 8599.6140029655. The cubic root of 73953361 is about 419.7454258474.

The spelling of 73953361 in words is "seventy-three million, nine hundred fifty-three thousand, three hundred sixty-one".