28435412 has 6 divisors (see below), whose sum is σ = 49761978. Its totient is φ = 14217704.

The previous prime is 28435409. The next prime is 28435417. The reversal of 28435412 is 21453482.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24167056 + 4268356 = 4916^2 + 2066^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28435417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3554423 + ... + 3554430.

It is an arithmetic number, because the mean of its divisors is an integer number (8293663).

Almost surely, 2^28435412 is an apocalyptic number.

It is an amenable number.

28435412 is a deficient number, since it is larger than the sum of its proper divisors (21326566).

28435412 is a wasteful number, since it uses less digits than its factorization.

28435412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7108857 (or 7108855 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 28435412 is about 5332.4864744320. The cubic root of 28435412 is about 305.2248167775.

Adding to 28435412 its reverse (21453482), we get a palindrome (49888894).

It can be divided in two parts, 28435 and 412, that multiplied together give a triangular number (11715220 = T₄₈₄₀).

The spelling of 28435412 in words is "twenty-eight million, four hundred thirty-five thousand, four hundred twelve".