872404441 has 2 divisors, whose sum is σ = 872404442. Its totient is φ = 872404440.

The previous prime is 872404439. The next prime is 872404457. The reversal of 872404441 is 144404278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 737937225 + 134467216 = 27165^2 + 11596^2 .

It is a cyclic number.

It is not a de Polignac number, because 872404441 - 2¹ = 872404439 is a prime.

It is a super-2 number, since 2×872404441² = 1522179017353044962, which contains 22 as substring.

Together with 872404439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 872404397 and 872404406.

It is not a weakly prime, because it can be changed into another prime (872404411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436202220 + 436202221.

It is an arithmetic number, because the mean of its divisors is an integer number (436202221).

Almost surely, 2^872404441 is an apocalyptic number.

It is an amenable number.

872404441 is a deficient number, since it is larger than the sum of its proper divisors (1).

872404441 is an equidigital number, since it uses as much as digits as its factorization.

872404441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28672, while the sum is 34.

The square root of 872404441 is about 29536.4933768381. The cubic root of 872404441 is about 955.5189164732.

The spelling of 872404441 in words is "eight hundred seventy-two million, four hundred four thousand, four hundred forty-one".