3287040646 has 4 divisors (see below), whose sum is σ = 4930560972. Its totient is φ = 1643520322.

The previous prime is 3287040613. The next prime is 3287040671. The reversal of 3287040646 is 6460407823.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 3287040599 and 3287040608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821760160 + ... + 821760163.

It is an arithmetic number, because the mean of its divisors is an integer number (1232640243).

Almost surely, 2^3287040646 is an apocalyptic number.

3287040646 is a deficient number, since it is larger than the sum of its proper divisors (1643520326).

3287040646 is a wasteful number, since it uses less digits than its factorization.

3287040646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643520325.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 3287040646 is about 57332.7188087221. The cubic root of 3287040646 is about 1486.8541115669.

The spelling of 3287040646 in words is "three billion, two hundred eighty-seven million, forty thousand, six hundred forty-six".