72199699 has 8 divisors (see below), whose sum is σ = 84822192. Its totient is φ = 60587040.

The previous prime is 72199693. The next prime is 72199711. The reversal of 72199699 is 99699127.

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 72199699 - 2⁵ = 72199667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72199693) 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 7 ways as a sum of consecutive naturals, for example, 252304 + ... + 252589.

It is an arithmetic number, because the mean of its divisors is an integer number (10602774).

Almost surely, 2^72199699 is an apocalyptic number.

72199699 is a deficient number, since it is larger than the sum of its proper divisors (12622493).

72199699 is a wasteful number, since it uses less digits than its factorization.

72199699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504917.

The product of its digits is 551124, while the sum is 52.

The square root of 72199699 is about 8497.0406024686. The cubic root of 72199699 is about 416.4010305436.

It can be divided in two parts, 7219969 and 9, that multiplied together give a square (64979721 = 8061²).

The spelling of 72199699 in words is "seventy-two million, one hundred ninety-nine thousand, six hundred ninety-nine".