84550493 has 4 divisors (see below), whose sum is σ = 84679068. Its totient is φ = 84421920.

The previous prime is 84550489. The next prime is 84550517. The reversal of 84550493 is 39405548.

It is a happy number.

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 56280004 + 28270489 = 7502^2 + 5317^2 .

It is a cyclic number.

It is not a de Polignac number, because 84550493 - 2² = 84550489 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 (84550393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63296 + ... + 64617.

It is an arithmetic number, because the mean of its divisors is an integer number (21169767).

Almost surely, 2^84550493 is an apocalyptic number.

It is an amenable number.

84550493 is a deficient number, since it is larger than the sum of its proper divisors (128575).

84550493 is a wasteful number, since it uses less digits than its factorization.

84550493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128574.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 84550493 is about 9195.1342023920. The cubic root of 84550493 is about 438.9065358664.

The spelling of 84550493 in words is "eighty-four million, five hundred fifty thousand, four hundred ninety-three".