43097856 has 72 divisors (see below), whose sum is σ = 121487184. Its totient is φ = 13516800.

The previous prime is 43097849. The next prime is 43097863. The reversal of 43097856 is 65879034.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (43097849) and next prime (43097863).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11406 + ... + 14706.

It is an arithmetic number, because the mean of its divisors is an integer number (1687322).

Almost surely, 2^43097856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43097856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60743592).

43097856 is an abundant number, since it is smaller than the sum of its proper divisors (78389328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43097856 is a wasteful number, since it uses less digits than its factorization.

43097856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337 (or 3323 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 43097856 is about 6564.8957341301. The cubic root of 43097856 is about 350.6053632388.

The spelling of 43097856 in words is "forty-three million, ninety-seven thousand, eight hundred fifty-six".