84465261 has 10 divisors (see below), whose sum is σ = 126176622. Its totient is φ = 56310120.

The previous prime is 84465259. The next prime is 84465281. The reversal of 84465261 is 16256448.

It can be written as a sum of positive squares in only one way, i.e., 75429225 + 9036036 = 8685^2 + 3006^2 .

It is not a de Polignac number, because 84465261 - 2¹ = 84465259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84465281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 521310 + ... + 521471.

Almost surely, 2^84465261 is an apocalyptic number.

84465261 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

84465261 is a deficient number, since it is larger than the sum of its proper divisors (41711361).

84465261 is a wasteful number, since it uses less digits than its factorization.

84465261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042793 (or 1042784 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 84465261 is about 9190.4984086827. The cubic root of 84465261 is about 438.7590048557.

The spelling of 84465261 in words is "eighty-four million, four hundred sixty-five thousand, two hundred sixty-one".