344864987 has 8 divisors (see below), whose sum is σ = 356349312. Its totient is φ = 333403200.

The previous prime is 344864951. The next prime is 344864999. The reversal of 344864987 is 789468443.

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

It is a cyclic number.

It is not a de Polignac number, because 344864987 - 2¹² = 344860891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344864287) 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, 28937 + ... + 39077.

It is an arithmetic number, because the mean of its divisors is an integer number (44543664).

Almost surely, 2^344864987 is an apocalyptic number.

344864987 is a deficient number, since it is larger than the sum of its proper divisors (11484325).

344864987 is a wasteful number, since it uses less digits than its factorization.

344864987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269.

The product of its digits is 4644864, while the sum is 53.

The square root of 344864987 is about 18570.5408375739. The cubic root of 344864987 is about 701.2664061371.

The spelling of 344864987 in words is "three hundred forty-four million, eight hundred sixty-four thousand, nine hundred eighty-seven".