32478783 has 16 divisors (see below), whose sum is σ = 45342720. Its totient is φ = 20640224.

The previous prime is 32478773. The next prime is 32478827. The reversal of 32478783 is 38787423.

It is a cyclic number.

It is not a de Polignac number, because 32478783 - 2⁴ = 32478767 is a prime.

It is a super-2 number, since 2×32478783² = 2109742690322178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32478773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25813 + ... + 27041.

It is an arithmetic number, because the mean of its divisors is an integer number (2833920).

Almost surely, 2^32478783 is an apocalyptic number.

32478783 is a deficient number, since it is larger than the sum of its proper divisors (12863937).

32478783 is a wasteful number, since it uses less digits than its factorization.

32478783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638.

The product of its digits is 225792, while the sum is 42.

The square root of 32478783 is about 5699.0159676913. The cubic root of 32478783 is about 319.0557549057.

The spelling of 32478783 in words is "thirty-two million, four hundred seventy-eight thousand, seven hundred eighty-three".