73189070 has 32 divisors (see below), whose sum is σ = 134936928. Its totient is φ = 28574208.

The previous prime is 73189057. The next prime is 73189073. The reversal of 73189070 is 7098137.

73189070 = 348² + 349² + ... + 639².

It is a self number, because there is not a number n which added to its sum of digits gives 73189070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73189073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77642 + ... + 78578.

It is an arithmetic number, because the mean of its divisors is an integer number (4216779).

Almost surely, 2^73189070 is an apocalyptic number.

73189070 is a deficient number, since it is larger than the sum of its proper divisors (61747858).

73189070 is a wasteful number, since it uses less digits than its factorization.

73189070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124.

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

The square root of 73189070 is about 8555.0610751765. The cubic root of 73189070 is about 418.2944248648.

The spelling of 73189070 in words is "seventy-three million, one hundred eighty-nine thousand, seventy".