72730335 has 32 divisors (see below), whose sum is σ = 123863040. Its totient is φ = 36315648.

The previous prime is 72730331. The next prime is 72730381. The reversal of 72730335 is 53303727.

It is not a de Polignac number, because 72730335 - 2² = 72730331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72730331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56226 + ... + 57504.

It is an arithmetic number, because the mean of its divisors is an integer number (3870720).

Almost surely, 2^72730335 is an apocalyptic number.

72730335 is a deficient number, since it is larger than the sum of its proper divisors (51132705).

72730335 is a wasteful number, since it uses less digits than its factorization.

72730335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its (nonzero) digits is 13230, while the sum is 30.

The square root of 72730335 is about 8528.2081939878. The cubic root of 72730335 is about 417.4186629651.

The spelling of 72730335 in words is "seventy-two million, seven hundred thirty thousand, three hundred thirty-five".