28434616 has 32 divisors (see below), whose sum is σ = 63036000. Its totient is φ = 11765376.

The previous prime is 28434613. The next prime is 28434619. The reversal of 28434616 is 61643482.

It is an interprime number because it is at equal distance from previous prime (28434613) and next prime (28434619).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28434613) 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, 7131 + ... + 10378.

It is an arithmetic number, because the mean of its divisors is an integer number (1969875).

Almost surely, 2^28434616 is an apocalyptic number.

It is an amenable number.

28434616 is an abundant number, since it is smaller than the sum of its proper divisors (34601384).

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

28434616 is a wasteful number, since it uses less digits than its factorization.

28434616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17551 (or 17547 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 28434616 is about 5332.4118370583. The cubic root of 28434616 is about 305.2219686713.

The spelling of 28434616 in words is "twenty-eight million, four hundred thirty-four thousand, six hundred sixteen".