72867311 has 8 divisors (see below), whose sum is σ = 79999824. Its totient is φ = 65819520.

The previous prime is 72867283. The next prime is 72867313. The reversal of 72867311 is 11376827.

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

It is a cyclic number.

It is not a de Polignac number, because 72867311 - 2²⁶ = 5758447 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72867313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19370 + ... + 22823.

It is an arithmetic number, because the mean of its divisors is an integer number (9999978).

Almost surely, 2^72867311 is an apocalyptic number.

72867311 is a deficient number, since it is larger than the sum of its proper divisors (7132513).

72867311 is a wasteful number, since it uses less digits than its factorization.

72867311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42361.

The product of its digits is 14112, while the sum is 35.

The square root of 72867311 is about 8536.2351771727. The cubic root of 72867311 is about 417.6805458145.

The spelling of 72867311 in words is "seventy-two million, eight hundred sixty-seven thousand, three hundred eleven".