28046977 has 8 divisors (see below), whose sum is σ = 32112000. Its totient is φ = 23996544.

The previous prime is 28046927. The next prime is 28046981. The reversal of 28046977 is 77964082.

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 28046977 - 2⁷ = 28046849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28046927) 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, 849 + ... + 7537.

It is an arithmetic number, because the mean of its divisors is an integer number (4014000).

Almost surely, 2^28046977 is an apocalyptic number.

It is an amenable number.

28046977 is a deficient number, since it is larger than the sum of its proper divisors (4065023).

28046977 is an equidigital number, since it uses as much as digits as its factorization.

28046977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7295.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 28046977 is about 5295.9396711065. The cubic root of 28046977 is about 303.8286235417.

The spelling of 28046977 in words is "twenty-eight million, forty-six thousand, nine hundred seventy-seven".