28954613 has 8 divisors (see below), whose sum is σ = 30537120. Its totient is φ = 27378000.

The previous prime is 28954591. The next prime is 28954619. The reversal of 28954613 is 31645982.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28954613 - 2⁸ = 28954357 is a prime.

It is a super-2 number, since 2×28954613² = 1676739227959538, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28954619) 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, 11738 + ... + 13988.

It is an arithmetic number, because the mean of its divisors is an integer number (3817140).

Almost surely, 2^28954613 is an apocalyptic number.

It is an amenable number.

28954613 is a deficient number, since it is larger than the sum of its proper divisors (1582507).

28954613 is a wasteful number, since it uses less digits than its factorization.

28954613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947.

The product of its digits is 51840, while the sum is 38.

The square root of 28954613 is about 5380.9490798557. The cubic root of 28954613 is about 307.0713192891.

The spelling of 28954613 in words is "twenty-eight million, nine hundred fifty-four thousand, six hundred thirteen".