28414757 has 6 divisors (see below), whose sum is σ = 33053958. Its totient is φ = 24355464.

The previous prime is 28414753. The next prime is 28414777. The reversal of 28414757 is 75741482.

It can be written as a sum of positive squares in only one way, i.e., 28153636 + 261121 = 5306^2 + 511^2 .

It is not a de Polignac number, because 28414757 - 2² = 28414753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28414757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28414753) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289898 + ... + 289995.

It is an arithmetic number, because the mean of its divisors is an integer number (5508993).

Almost surely, 2^28414757 is an apocalyptic number.

It is an amenable number.

28414757 is a deficient number, since it is larger than the sum of its proper divisors (4639201).

28414757 is an equidigital number, since it uses as much as digits as its factorization.

28414757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579907 (or 579900 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 28414757 is about 5330.5494088321. The cubic root of 28414757 is about 305.1508955031.

It can be divided in two parts, 2841475 and 7, that added together give a palindrome (2841482).

The spelling of 28414757 in words is "twenty-eight million, four hundred fourteen thousand, seven hundred fifty-seven".