73729656 has 384 divisors, whose sum is σ = 286003200. Its totient is φ = 17107200.

The previous prime is 73729639. The next prime is 73729657. The reversal of 73729656 is 65692737.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73729657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2378361 + ... + 2378391.

It is an arithmetic number, because the mean of its divisors is an integer number (744800).

Almost surely, 2^73729656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73729656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143001600).

73729656 is an abundant number, since it is smaller than the sum of its proper divisors (212273544).

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

73729656 is a wasteful number, since it uses less digits than its factorization.

73729656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 67 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 73729656 is about 8586.5974634892. The cubic root of 73729656 is about 419.3217624797.

The spelling of 73729656 in words is "seventy-three million, seven hundred twenty-nine thousand, six hundred fifty-six".