28377436 has 24 divisors (see below), whose sum is σ = 50743280. Its totient is φ = 13882752.

The previous prime is 28377413. The next prime is 28377439. The reversal of 28377436 is 63477382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28377439) 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, 45535 + ... + 46153.

Almost surely, 2^28377436 is an apocalyptic number.

It is an amenable number.

28377436 is a deficient number, since it is larger than the sum of its proper divisors (22365844).

28377436 is a wasteful number, since it uses less digits than its factorization.

28377436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853 (or 851 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 28377436 is about 5327.0475875479. The cubic root of 28377436 is about 305.0172381191.

The spelling of 28377436 in words is "twenty-eight million, three hundred seventy-seven thousand, four hundred thirty-six".