84406023 has 16 divisors (see below), whose sum is σ = 134665440. Its totient is φ = 51941952.

The previous prime is 84406019. The next prime is 84406039. The reversal of 84406023 is 32060448.

It is not a de Polignac number, because 84406023 - 2² = 84406019 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84406043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119886 + ... + 120587.

It is an arithmetic number, because the mean of its divisors is an integer number (8416590).

Almost surely, 2^84406023 is an apocalyptic number.

84406023 is a deficient number, since it is larger than the sum of its proper divisors (50259417).

84406023 is a wasteful number, since it uses less digits than its factorization.

84406023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240495 (or 240489 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 84406023 is about 9187.2750584708. The cubic root of 84406023 is about 438.6564092871.

The spelling of 84406023 in words is "eighty-four million, four hundred six thousand, twenty-three".