73021066 has 16 divisors (see below), whose sum is σ = 116013600. Its totient is φ = 34373808.

The previous prime is 73021061. The next prime is 73021073. The reversal of 73021066 is 66012037.

It is a self number, because there is not a number n which added to its sum of digits gives 73021066.

It is not an unprimeable number, because it can be changed into a prime (73021061) 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, 300 + ... + 12088.

It is an arithmetic number, because the mean of its divisors is an integer number (7250850).

Almost surely, 2^73021066 is an apocalyptic number.

73021066 is a deficient number, since it is larger than the sum of its proper divisors (42992534).

73021066 is a wasteful number, since it uses less digits than its factorization.

73021066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11973.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 73021066 is about 8545.2364507953. The cubic root of 73021066 is about 417.9741175797.

The spelling of 73021066 in words is "seventy-three million, twenty-one thousand, sixty-six".