73378963 has 8 divisors (see below), whose sum is σ = 84054528. Its totient is φ = 62751624.

The previous prime is 73378939. The next prime is 73378973. The reversal of 73378963 is 36987337.

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

It is a cyclic number.

It is not a de Polignac number, because 73378963 - 2²⁵ = 39824531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73378933) 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, 8731 + ... + 14932.

It is an arithmetic number, because the mean of its divisors is an integer number (10506816).

Almost surely, 2^73378963 is an apocalyptic number.

73378963 is a deficient number, since it is larger than the sum of its proper divisors (10675565).

73378963 is a wasteful number, since it uses less digits than its factorization.

73378963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24113.

The product of its digits is 571536, while the sum is 46.

The square root of 73378963 is about 8566.1521700236. The cubic root of 73378963 is about 418.6558749461.

The spelling of 73378963 in words is "seventy-three million, three hundred seventy-eight thousand, nine hundred sixty-three".