872404543 has 2 divisors, whose sum is σ = 872404544. Its totient is φ = 872404542.

The previous prime is 872404523. The next prime is 872404579. The reversal of 872404543 is 345404278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 872404543 - 2²¹ = 870307391 is a prime.

It is a super-2 number, since 2×872404543² = 1522179373294077698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872404523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436202271 + 436202272.

It is an arithmetic number, because the mean of its divisors is an integer number (436202272).

Almost surely, 2^872404543 is an apocalyptic number.

872404543 is a deficient number, since it is larger than the sum of its proper divisors (1).

872404543 is an equidigital number, since it uses as much as digits as its factorization.

872404543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 872404543 is about 29536.4951035156. The cubic root of 872404543 is about 955.5189537124.

The spelling of 872404543 in words is "eight hundred seventy-two million, four hundred four thousand, five hundred forty-three".