28374678 has 16 divisors (see below), whose sum is σ = 63054960. Its totient is φ = 9458208.

The previous prime is 28374677. The next prime is 28374679. The reversal of 28374678 is 87647382.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28374677) and next prime (28374679).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28374677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262675 + ... + 262782.

It is an arithmetic number, because the mean of its divisors is an integer number (3940935).

Almost surely, 2^28374678 is an apocalyptic number.

28374678 is an abundant number, since it is smaller than the sum of its proper divisors (34680282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28374678 is a wasteful number, since it uses less digits than its factorization.

28374678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525468 (or 525462 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 28374678 is about 5326.7887136623. The cubic root of 28374678 is about 305.0073562680.

The spelling of 28374678 in words is "twenty-eight million, three hundred seventy-four thousand, six hundred seventy-eight".