84744407 has 6 divisors (see below), whose sum is σ = 93148944. Its totient is φ = 77040260.

The previous prime is 84744343. The next prime is 84744419. The reversal of 84744407 is 70444748.

It is a happy number.

It is not a de Polignac number, because 84744407 - 2⁶ = 84744343 is a prime.

It is a super-2 number, since 2×84744407² = 14363229035563298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84744487) 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 5 ways as a sum of consecutive naturals, for example, 350063 + ... + 350304.

It is an arithmetic number, because the mean of its divisors is an integer number (15524824).

Almost surely, 2^84744407 is an apocalyptic number.

84744407 is a deficient number, since it is larger than the sum of its proper divisors (8404537).

84744407 is a wasteful number, since it uses less digits than its factorization.

84744407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700389 (or 700378 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 38.

The square root of 84744407 is about 9205.6725446868. The cubic root of 84744407 is about 439.2418193005.

It can be divided in two parts, 847 and 44407, that added together give a palindrome (45254).

The spelling of 84744407 in words is "eighty-four million, seven hundred forty-four thousand, four hundred seven".