72504641 has 8 divisors (see below), whose sum is σ = 79601664. Its totient is φ = 65491920.

The previous prime is 72504631. The next prime is 72504667. The reversal of 72504641 is 14640527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72504641 - 2⁶ = 72504577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72504631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19265 + ... + 22718.

It is an arithmetic number, because the mean of its divisors is an integer number (9950208).

Almost surely, 2^72504641 is an apocalyptic number.

It is an amenable number.

72504641 is a deficient number, since it is larger than the sum of its proper divisors (7097023).

72504641 is a wasteful number, since it uses less digits than its factorization.

72504641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42151.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 72504641 is about 8514.9657075058. The cubic root of 72504641 is about 416.9864430184.

The spelling of 72504641 in words is "seventy-two million, five hundred four thousand, six hundred forty-one".