73766738 has 4 divisors (see below), whose sum is σ = 110650110. Its totient is φ = 36883368.

The previous prime is 73766717. The next prime is 73766743. The reversal of 73766738 is 83766737.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83766737 = 47 ⋅1782271.

It can be written as a sum of positive squares in only one way, i.e., 62362609 + 11404129 = 7897^2 + 3377^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73766692 and 73766701.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18441683 + ... + 18441686.

Almost surely, 2^73766738 is an apocalyptic number.

73766738 is a deficient number, since it is larger than the sum of its proper divisors (36883372).

73766738 is a wasteful number, since it uses less digits than its factorization.

73766738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36883371.

The product of its digits is 889056, while the sum is 47.

The square root of 73766738 is about 8588.7564874084. The cubic root of 73766738 is about 419.3920493645.

Subtracting 73766738 from its reverse (83766737), we obtain a palindrome (9999999).

The spelling of 73766738 in words is "seventy-three million, seven hundred sixty-six thousand, seven hundred thirty-eight".