28867450 has 12 divisors (see below), whose sum is σ = 53693550. Its totient is φ = 11546960.

The previous prime is 28867429. The next prime is 28867471. The reversal of 28867450 is 5476882.

It is an interprime number because it is at equal distance from previous prime (28867429) and next prime (28867471).

It can be written as a sum of positive squares in 3 ways, for example, as 19704721 + 9162729 = 4439^2 + 3027^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288625 + ... + 288724.

Almost surely, 2^28867450 is an apocalyptic number.

28867450 is a deficient number, since it is larger than the sum of its proper divisors (24826100).

28867450 is a wasteful number, since it uses less digits than its factorization.

28867450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577361 (or 577356 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 28867450 is about 5372.8437535443. The cubic root of 28867450 is about 306.7628807011.

The spelling of 28867450 in words is "twenty-eight million, eight hundred sixty-seven thousand, four hundred fifty".