73736681 has 8 divisors (see below), whose sum is σ = 74574240. Its totient is φ = 72902592.

The previous prime is 73736669. The next prime is 73736713. The reversal of 73736681 is 18663737.

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 73736681 - 2¹⁰ = 73735657 is a prime.

It is a super-2 number, since 2×73736681² = 10874196249791522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73736881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83066 + ... + 83948.

It is an arithmetic number, because the mean of its divisors is an integer number (9321780).

Almost surely, 2^73736681 is an apocalyptic number.

It is an amenable number.

73736681 is a deficient number, since it is larger than the sum of its proper divisors (837559).

73736681 is a wasteful number, since it uses less digits than its factorization.

73736681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its digits is 127008, while the sum is 41.

The square root of 73736681 is about 8587.0065214835. The cubic root of 73736681 is about 419.3350797887.

The spelling of 73736681 in words is "seventy-three million, seven hundred thirty-six thousand, six hundred eighty-one".