73127690 has 16 divisors (see below), whose sum is σ = 131799528. Its totient is φ = 29213376.

The previous prime is 73127683. The next prime is 73127699. The reversal of 73127690 is 9672137.

It can be written as a sum of positive squares in 4 ways, for example, as 33651601 + 39476089 = 5801^2 + 6283^2 .

It is a super-2 number, since 2×73127690² = 10695318089472200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73127690.

It is not an unprimeable number, because it can be changed into a prime (73127699) 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, 4244 + ... + 12816.

Almost surely, 2^73127690 is an apocalyptic number.

73127690 is a deficient number, since it is larger than the sum of its proper divisors (58671838).

73127690 is a wasteful number, since it uses less digits than its factorization.

73127690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9433.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 73127690 is about 8551.4729725352. The cubic root of 73127690 is about 418.1774579800.

The spelling of 73127690 in words is "seventy-three million, one hundred twenty-seven thousand, six hundred ninety".