72655103 has 8 divisors (see below), whose sum is σ = 76415616. Its totient is φ = 68983200.

The previous prime is 72655097. The next prime is 72655109. The reversal of 72655103 is 30155627.

It is an interprime number because it is at equal distance from previous prime (72655097) and next prime (72655109).

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 72655103 - 2⁶ = 72655039 is a prime.

It is a super-3 number, since 3×72655103³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72655109) 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, 20468 + ... + 23753.

It is an arithmetic number, because the mean of its divisors is an integer number (9551952).

Almost surely, 2^72655103 is an apocalyptic number.

72655103 is a deficient number, since it is larger than the sum of its proper divisors (3760513).

72655103 is a wasteful number, since it uses less digits than its factorization.

72655103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44305.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 72655103 is about 8523.7962786542. The cubic root of 72655103 is about 417.2746878508.

The spelling of 72655103 in words is "seventy-two million, six hundred fifty-five thousand, one hundred three".