84896409 has 8 divisors (see below), whose sum is σ = 121902592. Its totient is φ = 52243920.

The previous prime is 84896401. The next prime is 84896423. The reversal of 84896409 is 90469848.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84896409 - 2³ = 84896401 is a prime.

It is a super-2 number, since 2×84896409² = 14414800522190562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84896401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088377 + ... + 1088454.

It is an arithmetic number, because the mean of its divisors is an integer number (15237824).

Almost surely, 2^84896409 is an apocalyptic number.

It is an amenable number.

84896409 is a deficient number, since it is larger than the sum of its proper divisors (37006183).

84896409 is a wasteful number, since it uses less digits than its factorization.

84896409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176847.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 84896409 is about 9213.9247337929. The cubic root of 84896409 is about 439.5042781419.

The spelling of 84896409 in words is "eighty-four million, eight hundred ninety-six thousand, four hundred nine".