73428261 has 16 divisors (see below), whose sum is σ = 101861760. Its totient is φ = 46992960.

The previous prime is 73428247. The next prime is 73428269. The reversal of 73428261 is 16282437.

It is not a de Polignac number, because 73428261 - 2⁶ = 73428197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73428269) 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 15 ways as a sum of consecutive naturals, for example, 13416 + ... + 18078.

It is an arithmetic number, because the mean of its divisors is an integer number (6366360).

Almost surely, 2^73428261 is an apocalyptic number.

It is an amenable number.

73428261 is a deficient number, since it is larger than the sum of its proper divisors (28433499).

73428261 is a wasteful number, since it uses less digits than its factorization.

73428261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4876.

The product of its digits is 16128, while the sum is 33.

The square root of 73428261 is about 8569.0291748832. The cubic root of 73428261 is about 418.7496087915.

The spelling of 73428261 in words is "seventy-three million, four hundred twenty-eight thousand, two hundred sixty-one".