73378869 has 8 divisors (see below), whose sum is σ = 99299040. Its totient is φ = 48188976.

The previous prime is 73378859. The next prime is 73378873. The reversal of 73378869 is 96887337.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73378869 - 2⁴ = 73378853 is a prime.

It is a super-2 number, since 2×73378869² = 10768916831438322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73378859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182334 + ... + 182735.

It is an arithmetic number, because the mean of its divisors is an integer number (12412380).

Almost surely, 2^73378869 is an apocalyptic number.

It is an amenable number.

73378869 is a deficient number, since it is larger than the sum of its proper divisors (25920171).

73378869 is a wasteful number, since it uses less digits than its factorization.

73378869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365139.

The product of its digits is 1524096, while the sum is 51.

The square root of 73378869 is about 8566.1466833110. The cubic root of 73378869 is about 418.6556961770.

It can be divided in two parts, 73378 and 869, that added together give a palindrome (74247).

The spelling of 73378869 in words is "seventy-three million, three hundred seventy-eight thousand, eight hundred sixty-nine".