73977263 has 4 divisors (see below), whose sum is σ = 73995240. Its totient is φ = 73959288.

The previous prime is 73977227. The next prime is 73977283. The reversal of 73977263 is 36277937.

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 73977263 - 2¹⁴ = 73960879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73977283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581 + ... + 12177.

It is an arithmetic number, because the mean of its divisors is an integer number (18498810).

Almost surely, 2^73977263 is an apocalyptic number.

73977263 is a deficient number, since it is larger than the sum of its proper divisors (17977).

73977263 is a wasteful number, since it uses less digits than its factorization.

73977263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17976.

The product of its digits is 333396, while the sum is 44.

The square root of 73977263 is about 8601.0036042313. The cubic root of 73977263 is about 419.7906420681.

The spelling of 73977263 in words is "seventy-three million, nine hundred seventy-seven thousand, two hundred sixty-three".