32897880 has 128 divisors (see below), whose sum is σ = 111283200. Its totient is φ = 8643456.

The previous prime is 32897863. The next prime is 32897897. The reversal of 32897880 is 8879823.

It is an interprime number because it is at equal distance from previous prime (32897863) and next prime (32897897).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89457 + ... + 89823.

It is an arithmetic number, because the mean of its divisors is an integer number (869400).

Almost surely, 2^32897880 is an apocalyptic number.

32897880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32897880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55641600).

32897880 is an abundant number, since it is smaller than the sum of its proper divisors (78385320).

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

32897880 is a wasteful number, since it uses less digits than its factorization.

32897880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 32897880 is about 5735.6673543712. The cubic root of 32897880 is about 320.4222290964.

The spelling of 32897880 in words is "thirty-two million, eight hundred ninety-seven thousand, eight hundred eighty".