84626261 has 4 divisors (see below), whose sum is σ = 84652524. Its totient is φ = 84600000.

The previous prime is 84626239. The next prime is 84626287. The reversal of 84626261 is 16262648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70140625 + 14485636 = 8375^2 + 3806^2 .

It is a cyclic number.

It is not a de Polignac number, because 84626261 - 2¹⁰ = 84625237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84626291) 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 3 ways as a sum of consecutive naturals, for example, 7490 + ... + 15011.

It is an arithmetic number, because the mean of its divisors is an integer number (21163131).

Almost surely, 2^84626261 is an apocalyptic number.

It is an amenable number.

84626261 is a deficient number, since it is larger than the sum of its proper divisors (26263).

84626261 is a wasteful number, since it uses less digits than its factorization.

84626261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26262.

The product of its digits is 27648, while the sum is 35.

The square root of 84626261 is about 9199.2532849139. The cubic root of 84626261 is about 439.0376020911.

The spelling of 84626261 in words is "eighty-four million, six hundred twenty-six thousand, two hundred sixty-one".