73985429 has 16 divisors (see below), whose sum is σ = 85954176. Its totient is φ = 62376000.

The previous prime is 73985407. The next prime is 73985441. The reversal of 73985429 is 92458937.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73985429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73985629) 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, 160259 + ... + 160719.

It is an arithmetic number, because the mean of its divisors is an integer number (5372136).

Almost surely, 2^73985429 is an apocalyptic number.

It is an amenable number.

73985429 is a deficient number, since it is larger than the sum of its proper divisors (11968747).

73985429 is a wasteful number, since it uses less digits than its factorization.

73985429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its digits is 544320, while the sum is 47.

The square root of 73985429 is about 8601.4783031756. The cubic root of 73985429 is about 419.8060877340.

It can be divided in two parts, 739 and 85429, that added together give a palindrome (86168).

The spelling of 73985429 in words is "seventy-three million, nine hundred eighty-five thousand, four hundred twenty-nine".