28969965 has 48 divisors (see below), whose sum is σ = 54612480. Its totient is φ = 14152320.

The previous prime is 28969957. The next prime is 28969973. The reversal of 28969965 is 56996982.

It is an interprime number because it is at equal distance from previous prime (28969957) and next prime (28969973).

It is not a de Polignac number, because 28969965 - 2³ = 28969957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25959 + ... + 27051.

It is an arithmetic number, because the mean of its divisors is an integer number (1137760).

Almost surely, 2^28969965 is an apocalyptic number.

It is an amenable number.

28969965 is a deficient number, since it is larger than the sum of its proper divisors (25642515).

28969965 is a wasteful number, since it uses less digits than its factorization.

28969965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154 (or 1151 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 28969965 is about 5382.3754049676. The cubic root of 28969965 is about 307.1255803720.

The spelling of 28969965 in words is "twenty-eight million, nine hundred sixty-nine thousand, nine hundred sixty-five".