84451093 has 4 divisors (see below), whose sum is σ = 84471660. Its totient is φ = 84430528.

The previous prime is 84451061. The next prime is 84451123. The reversal of 84451093 is 39015448.

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 52664049 + 31787044 = 7257^2 + 5638^2 .

It is a cyclic number.

It is not a de Polignac number, because 84451093 - 2⁵ = 84451061 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 (84451693) 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, 1780 + ... + 13117.

It is an arithmetic number, because the mean of its divisors is an integer number (21117915).

Almost surely, 2^84451093 is an apocalyptic number.

It is an amenable number.

84451093 is a deficient number, since it is larger than the sum of its proper divisors (20567).

84451093 is a wasteful number, since it uses less digits than its factorization.

84451093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20566.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 84451093 is about 9189.7275802931. The cubic root of 84451093 is about 438.7344713567.

The spelling of 84451093 in words is "eighty-four million, four hundred fifty-one thousand, ninety-three".