73364381 has 4 divisors (see below), whose sum is σ = 73388700. Its totient is φ = 73340064.

The previous prime is 73364359. The next prime is 73364393. The reversal of 73364381 is 18346337.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35295481 + 38068900 = 5941^2 + 6170^2 .

It is a cyclic number.

It is not a de Polignac number, because 73364381 - 2¹⁰ = 73363357 is a prime.

It is a super-2 number, since 2×73364381² = 10764664799026322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73364351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6866 + ... + 13923.

It is an arithmetic number, because the mean of its divisors is an integer number (18347175).

Almost surely, 2^73364381 is an apocalyptic number.

It is an amenable number.

73364381 is a deficient number, since it is larger than the sum of its proper divisors (24319).

73364381 is a wasteful number, since it uses less digits than its factorization.

73364381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24318.

The product of its digits is 36288, while the sum is 35.

The square root of 73364381 is about 8565.3009871224. The cubic root of 73364381 is about 418.6281410918.

The spelling of 73364381 in words is "seventy-three million, three hundred sixty-four thousand, three hundred eighty-one".