72036785 has 8 divisors (see below), whose sum is σ = 86489856. Its totient is φ = 57598960.

The previous prime is 72036737. The next prime is 72036821. The reversal of 72036785 is 58763027.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72036785 - 2⁶ = 72036721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15392 + ... + 19518.

It is an arithmetic number, because the mean of its divisors is an integer number (10811232).

Almost surely, 2^72036785 is an apocalyptic number.

It is an amenable number.

72036785 is a deficient number, since it is larger than the sum of its proper divisors (14453071).

72036785 is a wasteful number, since it uses less digits than its factorization.

72036785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 72036785 is about 8487.4486743662. The cubic root of 72036785 is about 416.0876005885.

The spelling of 72036785 in words is "seventy-two million, thirty-six thousand, seven hundred eighty-five".