72619471 has 6 divisors (see below), whose sum is σ = 73132472. Its totient is φ = 72110040.

The previous prime is 72619423. The next prime is 72619483. The reversal of 72619471 is 17491627.

It is not a de Polignac number, because 72619471 - 2¹⁷ = 72488399 is a prime.

It is a super-3 number, since 3×72619471³ (a number of 25 digits) contains 333 as substring.

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 72619471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72619411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20566 + ... + 23836.

Almost surely, 2^72619471 is an apocalyptic number.

72619471 is a deficient number, since it is larger than the sum of its proper divisors (513001).

72619471 is an equidigital number, since it uses as much as digits as its factorization.

72619471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569 (or 3420 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

The square root of 72619471 is about 8521.7058738260. The cubic root of 72619471 is about 417.2064624849.

The spelling of 72619471 in words is "seventy-two million, six hundred nineteen thousand, four hundred seventy-one".