84961247 has 6 divisors (see below), whose sum is σ = 98832528. Its totient is φ = 72823884.

The previous prime is 84961243. The next prime is 84961267. The reversal of 84961247 is 74216948.

It is not a de Polignac number, because 84961247 - 2² = 84961243 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 (84961243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 866903 + ... + 867000.

It is an arithmetic number, because the mean of its divisors is an integer number (16472088).

Almost surely, 2^84961247 is an apocalyptic number.

84961247 is a deficient number, since it is larger than the sum of its proper divisors (13871281).

84961247 is a wasteful number, since it uses less digits than its factorization.

84961247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733917 (or 1733910 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 84961247 is about 9217.4425411825. The cubic root of 84961247 is about 439.6161373172.

The spelling of 84961247 in words is "eighty-four million, nine hundred sixty-one thousand, two hundred forty-seven".