79872001 has 16 divisors (see below), whose sum is σ = 93538368. Its totient is φ = 67392000.

The previous prime is 79871929. The next prime is 79872019. The reversal of 79872001 is 10027897.

It is a 4-Lehmer number, since φ(79872001) divides (79872001-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 79872001 - 2⁹ = 79871489 is a prime.

It is a deceptive number, since it divides R_79872000.

It is not an unprimeable number, because it can be changed into a prime (79872701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10726 + ... + 16576.

It is an arithmetic number, because the mean of its divisors is an integer number (5846148).

It is a Proth number, since it is equal to 4875 ⋅ 2¹⁴ + 1 and 4875 < 2¹⁴.

Almost surely, 2^79872001 is an apocalyptic number.

It is an amenable number.

79872001 is a deficient number, since it is larger than the sum of its proper divisors (13666367).

79872001 is a wasteful number, since it uses less digits than its factorization.

79872001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 79872001 is about 8937.1136839586. The cubic root of 79872001 is about 430.6570107643.

Adding to 79872001 its reverse (10027897), we get a palindrome (89899898).

The spelling of 79872001 in words is "seventy-nine million, eight hundred seventy-two thousand, one".