72671583 has 8 divisors (see below), whose sum is σ = 102595248. Its totient is φ = 45597824.

The previous prime is 72671581. The next prime is 72671587. The reversal of 72671583 is 38517627.

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 72671583 - 2¹ = 72671581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72671581) 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, 712416 + ... + 712517.

It is an arithmetic number, because the mean of its divisors is an integer number (12824406).

Almost surely, 2^72671583 is an apocalyptic number.

72671583 is a deficient number, since it is larger than the sum of its proper divisors (29923665).

72671583 is a wasteful number, since it uses less digits than its factorization.

72671583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424953.

The product of its digits is 70560, while the sum is 39.

The square root of 72671583 is about 8524.7629292550. The cubic root of 72671583 is about 417.3062349214.

The spelling of 72671583 in words is "seventy-two million, six hundred seventy-one thousand, five hundred eighty-three".