73961851 has 6 divisors (see below), whose sum is σ = 77894060. Its totient is φ = 70033608.

The previous prime is 73961837. The next prime is 73961857. The reversal of 73961851 is 15816937.

It is a de Polignac number, because none of the positive numbers 2^k-73961851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73961857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36501 + ... + 38473.

Almost surely, 2^73961851 is an apocalyptic number.

73961851 is a deficient number, since it is larger than the sum of its proper divisors (3932209).

73961851 is an frugal number, since it uses more digits than its factorization.

73961851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965 (or 1992 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 73961851 is about 8600.1076156057. The cubic root of 73961851 is about 419.7614877827.

The spelling of 73961851 in words is "seventy-three million, nine hundred sixty-one thousand, eight hundred fifty-one".