72002851 has 8 divisors (see below), whose sum is σ = 74156544. Its totient is φ = 69860160.

The previous prime is 72002839. The next prime is 72002873. The reversal of 72002851 is 15820027.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72002851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72002881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11631 + ... + 16711.

It is an arithmetic number, because the mean of its divisors is an integer number (9269568).

Almost surely, 2^72002851 is an apocalyptic number.

72002851 is a deficient number, since it is larger than the sum of its proper divisors (2153693).

72002851 is a wasteful number, since it uses less digits than its factorization.

72002851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 72002851 is about 8485.4493693616. The cubic root of 72002851 is about 416.0222555740.

Adding to 72002851 its reverse (15820027), we get a palindrome (87822878).

The spelling of 72002851 in words is "seventy-two million, two thousand, eight hundred fifty-one".