84951447 has 12 divisors (see below), whose sum is σ = 131761656. Its totient is φ = 48543600.

The previous prime is 84951437. The next prime is 84951457. The reversal of 84951447 is 74415948.

It is an interprime number because it is at equal distance from previous prime (84951437) and next prime (84951457).

It is not a de Polignac number, because 84951447 - 2¹⁰ = 84950423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84951399 and 84951408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84951407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288804 + ... + 289097.

It is an arithmetic number, because the mean of its divisors is an integer number (10980138).

Almost surely, 2^84951447 is an apocalyptic number.

84951447 is a deficient number, since it is larger than the sum of its proper divisors (46810209).

84951447 is a wasteful number, since it uses less digits than its factorization.

84951447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577918 (or 577911 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 84951447 is about 9216.9109250334. The cubic root of 84951447 is about 439.5992339094.

The spelling of 84951447 in words is "eighty-four million, nine hundred fifty-one thousand, four hundred forty-seven".