84789253 has 2 divisors, whose sum is σ = 84789254. Its totient is φ = 84789252.

The previous prime is 84789233. The next prime is 84789361. The reversal of 84789253 is 35298748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56295009 + 28494244 = 7503^2 + 5338^2 .

It is a cyclic number.

It is not a de Polignac number, because 84789253 - 2¹³ = 84781061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84789223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42394626 + 42394627.

It is an arithmetic number, because the mean of its divisors is an integer number (42394627).

Almost surely, 2^84789253 is an apocalyptic number.

It is an amenable number.

84789253 is a deficient number, since it is larger than the sum of its proper divisors (1).

84789253 is an equidigital number, since it uses as much as digits as its factorization.

84789253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 46.

The square root of 84789253 is about 9208.1080032762. The cubic root of 84789253 is about 439.3192866152.

It can be divided in two parts, 847 and 89253, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 84789253 in words is "eighty-four million, seven hundred eighty-nine thousand, two hundred fifty-three".