36397856 has 48 divisors (see below), whose sum is σ = 79688448. Its totient is φ = 16224000.

The previous prime is 36397849. The next prime is 36397877. The reversal of 36397856 is 65879363.

It is a super-4 number, since 4×36397856⁴ (a number of 31 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36397856.

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, 17681 + ... + 19631.

It is an arithmetic number, because the mean of its divisors is an integer number (1660176).

Almost surely, 2^36397856 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 36397856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39844224).

36397856 is an abundant number, since it is smaller than the sum of its proper divisors (43290592).

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

36397856 is a wasteful number, since it uses less digits than its factorization.

36397856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2017 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 36397856 is about 6033.0635667130. The cubic root of 36397856 is about 331.4046523138.

The spelling of 36397856 in words is "thirty-six million, three hundred ninety-seven thousand, eight hundred fifty-six".