28741951 has 16 divisors (see below), whose sum is σ = 35035200. Its totient is φ = 23016960.

The previous prime is 28741913. The next prime is 28741981. The reversal of 28741951 is 15914782.

It is a cyclic number.

It is not a de Polignac number, because 28741951 - 2¹³ = 28733759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28741951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28741981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16921 + ... + 18541.

It is an arithmetic number, because the mean of its divisors is an integer number (2189700).

Almost surely, 2^28741951 is an apocalyptic number.

28741951 is a deficient number, since it is larger than the sum of its proper divisors (6293249).

28741951 is a wasteful number, since it uses less digits than its factorization.

28741951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794.

The product of its digits is 20160, while the sum is 37.

The square root of 28741951 is about 5361.1520217207. The cubic root of 28741951 is about 306.3176923251.

It can be divided in two parts, 28741 and 951, that added together give a palindrome (29692).

The spelling of 28741951 in words is "twenty-eight million, seven hundred forty-one thousand, nine hundred fifty-one".