72500329 has 4 divisors (see below), whose sum is σ = 79091280. Its totient is φ = 65909380.

The previous prime is 72500327. The next prime is 72500357. The reversal of 72500329 is 92300527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72500329 - 2¹ = 72500327 is a prime.

It is a super-3 number, since 3×72500329³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72500297 and 72500306.

It is not an unprimeable number, because it can be changed into a prime (72500327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3295459 + ... + 3295480.

It is an arithmetic number, because the mean of its divisors is an integer number (19772820).

Almost surely, 2^72500329 is an apocalyptic number.

It is an amenable number.

72500329 is a deficient number, since it is larger than the sum of its proper divisors (6590951).

72500329 is a wasteful number, since it uses less digits than its factorization.

72500329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590950.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 72500329 is about 8514.7125024865. The cubic root of 72500329 is about 416.9781765076.

The spelling of 72500329 in words is "seventy-two million, five hundred thousand, three hundred twenty-nine".