84023400715 has 4 divisors (see below), whose sum is σ = 100828080864. Its totient is φ = 67218720568.

The previous prime is 84023400691. The next prime is 84023400761. The reversal of 84023400715 is 51700432048.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84023400715 - 2⁹ = 84023400203 is a prime.

It is a super-2 number, since 2×84023400715² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8402340067 + ... + 8402340076.

It is an arithmetic number, because the mean of its divisors is an integer number (25207020216).

Almost surely, 2^84023400715 is an apocalyptic number.

84023400715 is a deficient number, since it is larger than the sum of its proper divisors (16804680149).

84023400715 is a wasteful number, since it uses less digits than its factorization.

84023400715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16804680148.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 84023400715 in words is "eighty-four billion, twenty-three million, four hundred thousand, seven hundred fifteen".