28748974 has 8 divisors (see below), whose sum is σ = 43526808. Its totient is φ = 14240040.

The previous prime is 28748971. The next prime is 28748977. The reversal of 28748974 is 47984782.

It is an interprime number because it is at equal distance from previous prime (28748971) and next prime (28748977).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28748971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66957 + ... + 67384.

It is an arithmetic number, because the mean of its divisors is an integer number (5440851).

Almost surely, 2^28748974 is an apocalyptic number.

28748974 is a deficient number, since it is larger than the sum of its proper divisors (14777834).

28748974 is a wasteful number, since it uses less digits than its factorization.

28748974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134450.

The product of its digits is 903168, while the sum is 49.

The square root of 28748974 is about 5361.8069715349. The cubic root of 28748974 is about 306.3426395292.

The spelling of 28748974 in words is "twenty-eight million, seven hundred forty-eight thousand, nine hundred seventy-four".