72872211 has 16 divisors (see below), whose sum is σ = 103864320. Its totient is φ = 45334080.

The previous prime is 72872209. The next prime is 72872213. The reversal of 72872211 is 11227827.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72872209) and next prime (72872213).

It is not a de Polignac number, because 72872211 - 2¹ = 72872209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72872213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10051 + ... + 15708.

It is an arithmetic number, because the mean of its divisors is an integer number (6491520).

Almost surely, 2^72872211 is an apocalyptic number.

72872211 is a deficient number, since it is larger than the sum of its proper divisors (30992109).

72872211 is a wasteful number, since it uses less digits than its factorization.

72872211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25826.

The product of its digits is 3136, while the sum is 30.

The square root of 72872211 is about 8536.5221841216. The cubic root of 72872211 is about 417.6899079861.

The spelling of 72872211 in words is "seventy-two million, eight hundred seventy-two thousand, two hundred eleven".