72827157 has 16 divisors (see below), whose sum is σ = 105114240. Its totient is φ = 44584512.

The previous prime is 72827147. The next prime is 72827159. The reversal of 72827157 is 75172827.

It is a de Polignac number, because none of the positive numbers 2^k-72827157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72827159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2944 + ... + 12422.

It is an arithmetic number, because the mean of its divisors is an integer number (6569640).

Almost surely, 2^72827157 is an apocalyptic number.

It is an amenable number.

72827157 is a deficient number, since it is larger than the sum of its proper divisors (32287083).

72827157 is a wasteful number, since it uses less digits than its factorization.

72827157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9692.

The product of its digits is 54880, while the sum is 39.

The square root of 72827157 is about 8533.8828794401. The cubic root of 72827157 is about 417.6038098678.

The spelling of 72827157 in words is "seventy-two million, eight hundred twenty-seven thousand, one hundred fifty-seven".