84744031 has 8 divisors (see below), whose sum is σ = 90416304. Its totient is φ = 79148160.

The previous prime is 84743999. The next prime is 84744041. The reversal of 84744031 is 13044748.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84744031 - 2⁵ = 84743999 is a prime.

It is a super-2 number, since 2×84744031² = 14363101580257922, 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 = 84743984 and 84744002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84744041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16800 + ... + 21253.

It is an arithmetic number, because the mean of its divisors is an integer number (11302038).

Almost surely, 2^84744031 is an apocalyptic number.

84744031 is a deficient number, since it is larger than the sum of its proper divisors (5672273).

84744031 is a wasteful number, since it uses less digits than its factorization.

84744031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38201.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 84744031 is about 9205.6521224735. The cubic root of 84744031 is about 439.2411696797.

Adding to 84744031 its reverse (13044748), we get a palindrome (97788779).

The spelling of 84744031 in words is "eighty-four million, seven hundred forty-four thousand, thirty-one".