84723430 has 32 divisors (see below), whose sum is σ = 166883328. Its totient is φ = 30712800.

The previous prime is 84723409. The next prime is 84723439. The reversal of 84723430 is 3432748.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 84723392 and 84723401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84723439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41125 + ... + 43135.

It is an arithmetic number, because the mean of its divisors is an integer number (5215104).

Almost surely, 2^84723430 is an apocalyptic number.

84723430 is a deficient number, since it is larger than the sum of its proper divisors (82159898).

84723430 is a wasteful number, since it uses less digits than its factorization.

84723430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 84723430 is about 9204.5331223262. The cubic root of 84723430 is about 439.2055740924.

The spelling of 84723430 in words is "eighty-four million, seven hundred twenty-three thousand, four hundred thirty".