872630243 has 4 divisors (see below), whose sum is σ = 872832048. Its totient is φ = 872428440.

The previous prime is 872630197. The next prime is 872630263. The reversal of 872630243 is 342036278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342036278 = 2 ⋅171018139.

It is a cyclic number.

It is not a de Polignac number, because 872630243 - 2⁸ = 872629987 is a prime.

It is a super-2 number, since 2×872630243² = 1522967081996478098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872630263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94271 + ... + 103112.

It is an arithmetic number, because the mean of its divisors is an integer number (218208012).

Almost surely, 2^872630243 is an apocalyptic number.

872630243 is a deficient number, since it is larger than the sum of its proper divisors (201805).

872630243 is a wasteful number, since it uses less digits than its factorization.

872630243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201804.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 872630243 is about 29540.3155534940. The cubic root of 872630243 is about 955.6013474575.

The spelling of 872630243 in words is "eight hundred seventy-two million, six hundred thirty thousand, two hundred forty-three".