84708261 has 20 divisors (see below), whose sum is σ = 138044544. Its totient is φ = 51337800.

The previous prime is 84708259. The next prime is 84708269. The reversal of 84708261 is 16280748.

It is not a de Polignac number, because 84708261 - 2¹ = 84708259 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84708269) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46645 + ... + 48426.

Almost surely, 2^84708261 is an apocalyptic number.

84708261 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

84708261 is a deficient number, since it is larger than the sum of its proper divisors (53336283).

84708261 is a wasteful number, since it uses less digits than its factorization.

84708261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95094 (or 95085 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 84708261 is about 9203.7090892748. The cubic root of 84708261 is about 439.1793605369.

The spelling of 84708261 in words is "eighty-four million, seven hundred eight thousand, two hundred sixty-one".