73017980 has 24 divisors (see below), whose sum is σ = 175243488. Its totient is φ = 25034688.

The previous prime is 73017979. The next prime is 73017991. The reversal of 73017980 is 8971037.

73017980 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

73017980 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 73017980.

It is a congruent number.

It is an unprimeable number.

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, 260639 + ... + 260918.

It is an arithmetic number, because the mean of its divisors is an integer number (7301812).

Almost surely, 2^73017980 is an apocalyptic number.

73017980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73017980 is an abundant number, since it is smaller than the sum of its proper divisors (102225508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73017980 is a wasteful number, since it uses less digits than its factorization.

73017980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521573 (or 521571 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 73017980 is about 8545.0558804492. The cubic root of 73017980 is about 417.9682293871.

The spelling of 73017980 in words is "seventy-three million, seventeen thousand, nine hundred eighty".