73902943 has 4 divisors (see below), whose sum is σ = 75006040. Its totient is φ = 72799848.

The previous prime is 73902929. The next prime is 73902947. The reversal of 73902943 is 34920937.

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

It is a cyclic number.

It is not a de Polignac number, because 73902943 - 2⁵ = 73902911 is a prime.

It is a super-2 number, since 2×73902943² = 10923289968122498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73902947) 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, 551448 + ... + 551581.

It is an arithmetic number, because the mean of its divisors is an integer number (18751510).

Almost surely, 2^73902943 is an apocalyptic number.

73902943 is a deficient number, since it is larger than the sum of its proper divisors (1103097).

73902943 is a wasteful number, since it uses less digits than its factorization.

73902943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103096.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 73902943 is about 8596.6820925285. The cubic root of 73902943 is about 419.6500164539.

The spelling of 73902943 in words is "seventy-three million, nine hundred two thousand, nine hundred forty-three".