73221635 has 16 divisors (see below), whose sum is σ = 94089600. Its totient is φ = 54506496.

The previous prime is 73221623. The next prime is 73221641. The reversal of 73221635 is 53612237.

It is a cyclic number.

It is not a de Polignac number, because 73221635 - 2⁴ = 73221619 is a prime.

It is a super-2 number, since 2×73221635² = 10722815664146450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73221598 and 73221607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2726 + ... + 12404.

It is an arithmetic number, because the mean of its divisors is an integer number (5880600).

Almost surely, 2^73221635 is an apocalyptic number.

73221635 is a deficient number, since it is larger than the sum of its proper divisors (20867965).

73221635 is a wasteful number, since it uses less digits than its factorization.

73221635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9790.

The product of its digits is 7560, while the sum is 29.

The square root of 73221635 is about 8556.9641228651. The cubic root of 73221635 is about 418.3564547924.

The spelling of 73221635 in words is "seventy-three million, two hundred twenty-one thousand, six hundred thirty-five".