72417601 has 4 divisors (see below), whose sum is σ = 72498352. Its totient is φ = 72336852.

The previous prime is 72417589. The next prime is 72417613. The reversal of 72417601 is 10671427.

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 an interprime number because it is at equal distance from previous prime (72417589) and next prime (72417613).

It is a cyclic number.

It is not a de Polignac number, because 72417601 - 2¹⁵ = 72384833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72417601.

It is not an unprimeable number, because it can be changed into a prime (72417661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39015 + ... + 40828.

It is an arithmetic number, because the mean of its divisors is an integer number (18124588).

Almost surely, 2^72417601 is an apocalyptic number.

It is an amenable number.

72417601 is a deficient number, since it is larger than the sum of its proper divisors (80751).

72417601 is an equidigital number, since it uses as much as digits as its factorization.

72417601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80750.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 72417601 is about 8509.8531714713. The cubic root of 72417601 is about 416.8195156202.

The spelling of 72417601 in words is "seventy-two million, four hundred seventeen thousand, six hundred one".