28535470 has 8 divisors (see below), whose sum is σ = 51363864. Its totient is φ = 11414184.

The previous prime is 28535453. The next prime is 28535471. The reversal of 28535470 is 7453582.

It is a happy number.

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 (28535471) 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, 1426764 + ... + 1426783.

It is an arithmetic number, because the mean of its divisors is an integer number (6420483).

Almost surely, 2^28535470 is an apocalyptic number.

28535470 is a deficient number, since it is larger than the sum of its proper divisors (22828394).

28535470 is a wasteful number, since it uses less digits than its factorization.

28535470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853554.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 28535470 is about 5341.8601629021. The cubic root of 28535470 is about 305.5824041544.

The spelling of 28535470 in words is "twenty-eight million, five hundred thirty-five thousand, four hundred seventy".