28423395 has 96 divisors (see below), whose sum is σ = 66253824. Its totient is φ = 10886400.

The previous prime is 28423379. The next prime is 28423397. The reversal of 28423395 is 59332482.

It is not a de Polignac number, because 28423395 - 2⁴ = 28423379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28423397) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44730 + ... + 45360.

It is an arithmetic number, because the mean of its divisors is an integer number (690144).

Almost surely, 2^28423395 is an apocalyptic number.

28423395 is an abundant number, since it is smaller than the sum of its proper divisors (37830429).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28423395 is a wasteful number, since it uses less digits than its factorization.

28423395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 670 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 28423395 is about 5331.3595826956. The cubic root of 28423395 is about 305.1818140193.

The spelling of 28423395 in words is "twenty-eight million, four hundred twenty-three thousand, three hundred ninety-five".