28739674 has 8 divisors (see below), whose sum is σ = 43923060. Its totient is φ = 14098656.

The previous prime is 28739617. The next prime is 28739681. The reversal of 28739674 is 47693782.

It can be written as a sum of positive squares in 2 ways, for example, as 23184225 + 5555449 = 4815^2 + 2357^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135459 + ... + 135670.

Almost surely, 2^28739674 is an apocalyptic number.

28739674 is a deficient number, since it is larger than the sum of its proper divisors (15183386).

28739674 is a wasteful number, since it uses less digits than its factorization.

28739674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271184.

The product of its digits is 508032, while the sum is 46.

The square root of 28739674 is about 5360.9396564408. The cubic root of 28739674 is about 306.3096030597.

The spelling of 28739674 in words is "twenty-eight million, seven hundred thirty-nine thousand, six hundred seventy-four".