38897684 has 48 divisors (see below), whose sum is σ = 82338816. Its totient is φ = 15724800.

The previous prime is 38897657. The next prime is 38897713. The reversal of 38897684 is 48679883.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35042 + ... + 36134.

It is an arithmetic number, because the mean of its divisors is an integer number (1715392).

Almost surely, 2^38897684 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 38897684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41169408).

38897684 is an abundant number, since it is smaller than the sum of its proper divisors (43441132).

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

38897684 is a wasteful number, since it uses less digits than its factorization.

38897684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1174 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 53.

The square root of 38897684 is about 6236.8007824525. The cubic root of 38897684 is about 338.8243245909.

The spelling of 38897684 in words is "thirty-eight million, eight hundred ninety-seven thousand, six hundred eighty-four".