28464961 has 12 divisors (see below), whose sum is σ = 34011712. Its totient is φ = 23334696.

The previous prime is 28464893. The next prime is 28464973. The reversal of 28464961 is 16946482.

It is not a de Polignac number, because 28464961 - 2⁷ = 28464833 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28414961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141 + ... + 7546.

Almost surely, 2^28464961 is an apocalyptic number.

It is an amenable number.

28464961 is a deficient number, since it is larger than the sum of its proper divisors (5546751).

28464961 is an equidigital number, since it uses as much as digits as its factorization.

28464961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7740 (or 7717 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 28464961 is about 5335.2564137068. The cubic root of 28464961 is about 305.3305061882.

The spelling of 28464961 in words is "twenty-eight million, four hundred sixty-four thousand, nine hundred sixty-one".