73797813 has 12 divisors (see below), whose sum is σ = 106681120. Its totient is φ = 49159656.

The previous prime is 73797811. The next prime is 73797851. The reversal of 73797813 is 31879737.

It is not a de Polignac number, because 73797813 - 2¹ = 73797811 is a prime.

It is a super-2 number, since 2×73797813² = 10892234407165938, 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 (73797811) 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 11 ways as a sum of consecutive naturals, for example, 13128 + ... + 17886.

Almost surely, 2^73797813 is an apocalyptic number.

It is an amenable number.

73797813 is a deficient number, since it is larger than the sum of its proper divisors (32883307).

73797813 is a wasteful number, since it uses less digits than its factorization.

73797813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488 (or 6485 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 73797813 is about 8590.5653481014. The cubic root of 73797813 is about 419.4509321739.

The spelling of 73797813 in words is "seventy-three million, seven hundred ninety-seven thousand, eight hundred thirteen".