73969813 has 8 divisors (see below), whose sum is σ = 76783616. Its totient is φ = 71182800.

The previous prime is 73969799. The next prime is 73969829. The reversal of 73969813 is 31896937.

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 73969813 - 2¹³ = 73961621 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 (73969213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (9597952).

Almost surely, 2^73969813 is an apocalyptic number.

It is an amenable number.

73969813 is a deficient number, since it is larger than the sum of its proper divisors (2813803).

73969813 is a wasteful number, since it uses less digits than its factorization.

73969813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13395.

The product of its digits is 244944, while the sum is 46.

The square root of 73969813 is about 8600.5705043328. The cubic root of 73969813 is about 419.7765496964.

The spelling of 73969813 in words is "seventy-three million, nine hundred sixty-nine thousand, eight hundred thirteen".