72091827 has 6 divisors (see below), whose sum is σ = 104132652. Its totient is φ = 48061212.

The previous prime is 72091801. The next prime is 72091847. The reversal of 72091827 is 72819027.

It is not a de Polignac number, because 72091827 - 2¹⁸ = 71829683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72091791 and 72091800.

It is not an unprimeable number, because it can be changed into a prime (72091847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4005093 + ... + 4005110.

It is an arithmetic number, because the mean of its divisors is an integer number (17355442).

Almost surely, 2^72091827 is an apocalyptic number.

72091827 is a deficient number, since it is larger than the sum of its proper divisors (32040825).

72091827 is a wasteful number, since it uses less digits than its factorization.

72091827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8010209 (or 8010206 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 72091827 is about 8490.6906079541. The cubic root of 72091827 is about 416.1935486034.

The spelling of 72091827 in words is "seventy-two million, ninety-one thousand, eight hundred twenty-seven".