73691699 has 4 divisors (see below), whose sum is σ = 73903200. Its totient is φ = 73480200.

The previous prime is 73691693. The next prime is 73691749. The reversal of 73691699 is 99619637.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99619637 = 13 ⋅7663049.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73691699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73691693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105227 + ... + 105924.

It is an arithmetic number, because the mean of its divisors is an integer number (18475800).

Almost surely, 2^73691699 is an apocalyptic number.

73691699 is a deficient number, since it is larger than the sum of its proper divisors (211501).

73691699 is a wasteful number, since it uses less digits than its factorization.

73691699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211500.

The product of its digits is 551124, while the sum is 50.

The square root of 73691699 is about 8584.3869320995. The cubic root of 73691699 is about 419.2497926688.

The spelling of 73691699 in words is "seventy-three million, six hundred ninety-one thousand, six hundred ninety-nine".