72036787 has 4 divisors (see below), whose sum is σ = 72710136. Its totient is φ = 71363440.

The previous prime is 72036737. The next prime is 72036821. The reversal of 72036787 is 78763027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78763027 = 7 ⋅11251861.

It is a cyclic number.

It is not a de Polignac number, because 72036787 - 2⁷ = 72036659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72036707) 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, 336514 + ... + 336727.

It is an arithmetic number, because the mean of its divisors is an integer number (18177534).

Almost surely, 2^72036787 is an apocalyptic number.

72036787 is a deficient number, since it is larger than the sum of its proper divisors (673349).

72036787 is a wasteful number, since it uses less digits than its factorization.

72036787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673348.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 72036787 is about 8487.4487921872. The cubic root of 72036787 is about 416.0876044392.

The spelling of 72036787 in words is "seventy-two million, thirty-six thousand, seven hundred eighty-seven".