28034994 has 32 divisors (see below), whose sum is σ = 63564480. Its totient is φ = 8171712.

The previous prime is 28034977. The next prime is 28035001. The reversal of 28034994 is 49943082.

It is a super-3 number, since 3×28034994³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7977 + ... + 10940.

It is an arithmetic number, because the mean of its divisors is an integer number (1986390).

Almost surely, 2^28034994 is an apocalyptic number.

28034994 is an abundant number, since it is smaller than the sum of its proper divisors (35529486).

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

28034994 is a wasteful number, since it uses less digits than its factorization.

28034994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18954.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 28034994 is about 5294.8082118241. The cubic root of 28034994 is about 303.7853473742.

The spelling of 28034994 in words is "twenty-eight million, thirty-four thousand, nine hundred ninety-four".