72937877 has 4 divisors (see below), whose sum is σ = 73937100. Its totient is φ = 71938656.

The previous prime is 72937867. The next prime is 72937901. The reversal of 72937877 is 77873927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77873927 = 307 ⋅253661.

It can be written as a sum of positive squares in 2 ways, for example, as 24690961 + 48246916 = 4969^2 + 6946^2 .

It is a cyclic number.

It is not a de Polignac number, because 72937877 - 2⁴ = 72937861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72937817) 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 3 ways as a sum of consecutive naturals, for example, 499502 + ... + 499647.

It is an arithmetic number, because the mean of its divisors is an integer number (18484275).

Almost surely, 2^72937877 is an apocalyptic number.

It is an amenable number.

72937877 is a deficient number, since it is larger than the sum of its proper divisors (999223).

72937877 is an equidigital number, since it uses as much as digits as its factorization.

72937877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999222.

The product of its digits is 1037232, while the sum is 50.

The square root of 72937877 is about 8540.3674979476. The cubic root of 72937877 is about 417.8153320705.

The spelling of 72937877 in words is "seventy-two million, nine hundred thirty-seven thousand, eight hundred seventy-seven".