84800039 has 4 divisors (see below), whose sum is σ = 84858480. Its totient is φ = 84741600.

The previous prime is 84800017. The next prime is 84800047. The reversal of 84800039 is 93000848.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84800039 is a prime.

It is a super-2 number, since 2×84800039² = 14382093228803042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84799978 and 84800014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84800239) 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, 26987 + ... + 29964.

It is an arithmetic number, because the mean of its divisors is an integer number (21214620).

Almost surely, 2^84800039 is an apocalyptic number.

84800039 is a deficient number, since it is larger than the sum of its proper divisors (58441).

84800039 is a wasteful number, since it uses less digits than its factorization.

84800039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58440.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 84800039 is about 9208.6936641415. The cubic root of 84800039 is about 439.3379143569.

The spelling of 84800039 in words is "eighty-four million, eight hundred thousand, thirty-nine".