32157663 has 8 divisors (see below), whose sum is σ = 42910848. Its totient is φ = 21421464.

The previous prime is 32157647. The next prime is 32157667. The reversal of 32157663 is 36675123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32157663 - 2⁴ = 32157647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32157667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156 + ... + 8102.

It is an arithmetic number, because the mean of its divisors is an integer number (5363856).

Almost surely, 2^32157663 is an apocalyptic number.

32157663 is a deficient number, since it is larger than the sum of its proper divisors (10753185).

32157663 is a wasteful number, since it uses less digits than its factorization.

32157663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8493.

The product of its digits is 22680, while the sum is 33.

The square root of 32157663 is about 5670.7726986717. The cubic root of 32157663 is about 318.0007614396. Note that the first 3 decimals are identical.

It can be divided in two parts, 3215 and 7663, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 32157663 in words is "thirty-two million, one hundred fifty-seven thousand, six hundred sixty-three".