73211061 has 64 divisors (see below), whose sum is σ = 130830336. Its totient is φ = 35251200.

The previous prime is 73211023. The next prime is 73211077. The reversal of 73211061 is 16011237.

It is not a de Polignac number, because 73211061 - 2⁹ = 73210549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73215061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 404391 + ... + 404571.

It is an arithmetic number, because the mean of its divisors is an integer number (2044224).

Almost surely, 2^73211061 is an apocalyptic number.

It is an amenable number.

73211061 is a deficient number, since it is larger than the sum of its proper divisors (57619275).

73211061 is a wasteful number, since it uses less digits than its factorization.

73211061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 73211061 is about 8556.3462412411. The cubic root of 73211061 is about 418.3363154164.

Adding to 73211061 its reverse (16011237), we get a palindrome (89222298).

The spelling of 73211061 in words is "seventy-three million, two hundred eleven thousand, sixty-one".