84339747 has 48 divisors (see below), whose sum is σ = 131878656. Its totient is φ = 51840000.

The previous prime is 84339721. The next prime is 84339751. The reversal of 84339747 is 74793348.

It is a happy number.

It is not a de Polignac number, because 84339747 - 2⁶ = 84339683 is a prime.

It is a super-2 number, since 2×84339747² = 14226385848048018, which contains 22 as substring.

Its product of digits (508032) is a multiple of the sum of its prime factors (252).

It is not an unprimeable number, because it can be changed into a prime (84339707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 834997 + ... + 835097.

It is an arithmetic number, because the mean of its divisors is an integer number (2747472).

Almost surely, 2^84339747 is an apocalyptic number.

84339747 is a deficient number, since it is larger than the sum of its proper divisors (47538909).

84339747 is a wasteful number, since it uses less digits than its factorization.

84339747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 249 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 84339747 is about 9183.6674046919. The cubic root of 84339747 is about 438.5415675427.

The spelling of 84339747 in words is "eighty-four million, three hundred thirty-nine thousand, seven hundred forty-seven".