34449987 has 32 divisors (see below), whose sum is σ = 54464256. Its totient is φ = 19094400.

The previous prime is 34449979. The next prime is 34450019. The reversal of 34449987 is 78994443.

It is not a de Polignac number, because 34449987 - 2³ = 34449979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34449917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55893 + ... + 56505.

It is an arithmetic number, because the mean of its divisors is an integer number (1702008).

Almost surely, 2^34449987 is an apocalyptic number.

34449987 is a deficient number, since it is larger than the sum of its proper divisors (20014269).

34449987 is a wasteful number, since it uses less digits than its factorization.

34449987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its digits is 870912, while the sum is 48.

The square root of 34449987 is about 5869.4111288953. The cubic root of 34449987 is about 325.3841201853.

It can be divided in two parts, 3444 and 9987, that added together give a palindrome (13431).

The spelling of 34449987 in words is "thirty-four million, four hundred forty-nine thousand, nine hundred eighty-seven".