28738562 has 4 divisors (see below), whose sum is σ = 43107846. Its totient is φ = 14369280.

The previous prime is 28738553. The next prime is 28738571. The reversal of 28738562 is 26583782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26583782 = 2 ⋅13291891.

It is an interprime number because it is at equal distance from previous prime (28738553) and next prime (28738571).

It can be written as a sum of positive squares in only one way, i.e., 16072081 + 12666481 = 4009^2 + 3559^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7184639 + ... + 7184642.

Almost surely, 2^28738562 is an apocalyptic number.

28738562 is a deficient number, since it is larger than the sum of its proper divisors (14369284).

28738562 is a wasteful number, since it uses less digits than its factorization.

28738562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14369283.

The product of its digits is 161280, while the sum is 41.

The square root of 28738562 is about 5360.8359422762. The cubic root of 28738562 is about 306.3056524156.

The spelling of 28738562 in words is "twenty-eight million, seven hundred thirty-eight thousand, five hundred sixty-two".