39828649 has 8 divisors (see below), whose sum is σ = 45620480. Its totient is φ = 34062336.

The previous prime is 39828647. The next prime is 39828653. The reversal of 39828649 is 94682893.

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

It is not a de Polignac number, because 39828649 - 2¹ = 39828647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39828647) 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, 2904 + ... + 9385.

It is an arithmetic number, because the mean of its divisors is an integer number (5702560).

Almost surely, 2^39828649 is an apocalyptic number.

It is an amenable number.

39828649 is a deficient number, since it is larger than the sum of its proper divisors (5791831).

39828649 is a wasteful number, since it uses less digits than its factorization.

39828649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12759.

The product of its digits is 746496, while the sum is 49.

The square root of 39828649 is about 6310.9942956716. The cubic root of 39828649 is about 341.5061468725.

The spelling of 39828649 in words is "thirty-nine million, eight hundred twenty-eight thousand, six hundred forty-nine".