32528641 has 8 divisors (see below), whose sum is σ = 33824000. Its totient is φ = 31248720.

The previous prime is 32528623. The next prime is 32528651. The reversal of 32528641 is 14682523.

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 32528641 - 2⁵ = 32528609 is a prime.

It is a super-2 number, since 2×32528641² = 2116224970613762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (32528651) 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, 535 + ... + 8083.

It is an arithmetic number, because the mean of its divisors is an integer number (4228000).

Almost surely, 2^32528641 is an apocalyptic number.

32528641 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32528641 is a deficient number, since it is larger than the sum of its proper divisors (1295359).

32528641 is a wasteful number, since it uses less digits than its factorization.

32528641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7719.

The product of its digits is 11520, while the sum is 31.

The square root of 32528641 is about 5703.3885541843. The cubic root of 32528641 is about 319.2189316780.

The spelling of 32528641 in words is "thirty-two million, five hundred twenty-eight thousand, six hundred forty-one".