28732070 has 16 divisors (see below), whose sum is σ = 52427520. Its totient is φ = 11335104.

The previous prime is 28732061. The next prime is 28732097. The reversal of 28732070 is 7023782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18950 + ... + 20409.

It is an arithmetic number, because the mean of its divisors is an integer number (3276720).

Almost surely, 2^28732070 is an apocalyptic number.

28732070 is a deficient number, since it is larger than the sum of its proper divisors (23695450).

28732070 is a wasteful number, since it uses less digits than its factorization.

28732070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39439.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 28732070 is about 5360.2304054956. The cubic root of 28732070 is about 306.2825860092.

The spelling of 28732070 in words is "twenty-eight million, seven hundred thirty-two thousand, seventy".