32778766 has 4 divisors (see below), whose sum is σ = 49168152. Its totient is φ = 16389382.

The previous prime is 32778763. The next prime is 32778769. The reversal of 32778766 is 66787723.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (32778763) and next prime (32778769).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32778763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8194690 + ... + 8194693.

It is an arithmetic number, because the mean of its divisors is an integer number (12292038).

Almost surely, 2^32778766 is an apocalyptic number.

32778766 is a deficient number, since it is larger than the sum of its proper divisors (16389386).

32778766 is a wasteful number, since it uses less digits than its factorization.

32778766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16389385.

The product of its digits is 592704, while the sum is 46.

The square root of 32778766 is about 5725.2743165721. The cubic root of 32778766 is about 320.0350417355.

The spelling of 32778766 in words is "thirty-two million, seven hundred seventy-eight thousand, seven hundred sixty-six".