28761634 has 8 divisors (see below), whose sum is σ = 47064528. Its totient is φ = 13073460.

The previous prime is 28761631. The next prime is 28761647. The reversal of 28761634 is 43616782.

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

It is a junction number, because it is equal to n+sod(n) for n = 28761593 and 28761602.

It is not an unprimeable number, because it can be changed into a prime (28761631) 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, 653652 + ... + 653695.

It is an arithmetic number, because the mean of its divisors is an integer number (5883066).

Almost surely, 2^28761634 is an apocalyptic number.

28761634 is a deficient number, since it is larger than the sum of its proper divisors (18302894).

28761634 is a wasteful number, since it uses less digits than its factorization.

28761634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307360.

The product of its digits is 48384, while the sum is 37.

The square root of 28761634 is about 5362.9874137462. The cubic root of 28761634 is about 306.3876003067.

The spelling of 28761634 in words is "twenty-eight million, seven hundred sixty-one thousand, six hundred thirty-four".